Faculty Profiles - YOKOYAMA TAKEHITO

写真a

YOKOYAMA TAKEHITO

Organization

School of Science Assistant Professor

External link

Research Areas

Natural Science / Magnetism, superconductivity and strongly correlated systems

Papers

Majorana current induced by charge current in Kitaev magnet/graphene bilayers

Takehito Yokoyama

Physical Review B 2026.8

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/vqbd-1khr

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Light-induced magnetization by quantum geometry

Hiroki Yoshida, Takehito Yokoyama

Physical Review B 114 ( 9 ) 2026.8

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/w2z4-wq53

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/w2z4-wq53/fulltext
Supercurrent-induced phonon angular momentum

Takehito Yokoyama

Physical Review B 114 ( 2 ) 2026.7

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/mz1s-9z7k

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Relationship between Nonunitary Mixed Parity Superconductivity and Magnetism with Spin–Orbit Coupling

Takehito Yokoyama

Journal of the Physical Society of Japan 95 ( 5 ) 2026.5

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Publishing type：Research paper (scientific journal) Publisher：Physical Society of Japan

DOI： 10.7566/jpsj.95.054705

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Floquet engineering triplet superconductivity in superconductors with spin-orbit coupling or altermagnetism

Takehito Yokoyama

Physical Review B 112 ( 2 ) 2025.7

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/4tng-rhc4

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/4tng-rhc4/fulltext
Phonon Edelstein effect in chiral metals

Takehito Yokoyama

Physical Review B 112 ( 2 ) 2025.7

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/lsv4-z14s

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Dzyaloshinskii-Moriya-type spin-spin interaction from mixed-parity superconductivity

Jabir Ali Ouassou, Takehito Yokoyama, Jacob Linder

Physical Review B 111 ( 6 ) 2025.2

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.111.l060504

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.111.L060504/fulltext
Chiral magnon in ferromagnetic chiral crystals

Dapeng Yao, Takehito Yokoyama

Physical Review B 111 ( 6 ) 2025.2

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.111.l060404

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.111.L060404/fulltext
Spin–Spin Interaction Mediated by Chiral Phonons

Takehito Yokoyama

Journal of the Physical Society of Japan 93 ( 12 ) 2024.12

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Publishing type：Research paper (scientific journal) Publisher：Physical Society of Japan

DOI： 10.7566/jpsj.93.123705

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RKKY interaction in triplet superconductors: Dzyaloshinskii-Moriya-type interaction mediated by spin-polarized Cooper pairs

Jabir Ali Ouassou, Takehito Yokoyama, Jacob Linder

Physical Review B 109 ( 17 ) 2024.5

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.109.174506

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Electric field-induced nonreciprocal spin current due to chiral phonons in chiral-structure superconductors

Dapeng Yao, Mamoru Matsuo, Takehito Yokoyama

Applied Physics Letters 124 ( 16 ) 2024.4

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Publishing type：Research paper (scientific journal) Publisher：AIP Publishing

A recent experiment [Nakajima, et al., Nature 613, 479 (2023)] has reported a pair of oppositely polarized spins under an alternating electric current in a superconductor with a chiral structure. However, these behaviors cannot be explained by the conventional Edelstein effect and require a new mechanism. In this Letter, we propose a mechanism of spin current generation under an external electric field due to chiral phonons in a chiral-structure superconductor based on the Bogoliubov de Gennes and the Boltzmann equations. In our mechanism, chiral phonons are induced by electric field due to inversion symmetry breaking and electron–phonon interaction. They work as an effective Zeeman field and hence spin-polarize Bogoliubov quasiparticles in the superconductor. As a result, the spin current carried by the quasiparticles flows along the screw axis and shows a quadratic dependence on the electric field at the low-field range, leading to a nonreciprocal spin transport. The spin current also shows a nonmonotonic temperature dependence, reaching its maximum at around the superconducting transition temperature.

DOI： 10.1063/5.0207915

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Topological superconductivity in helical crystals

Soma Yoshida, Keiji Yada, Yukio Tanaka, Takehito Yokoyama

Physical Review B 107 ( 20 ) 2023.5

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.107.205305

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Other Link： https://link.aps.org/article/10.1103/PhysRevB.107.205305
Generation of polarized spin-triplet Cooper pairings by magnetic barriers in superconducting junctions

Shun Tamura, Yukio Tanaka, Takehito Yokoyama

Physical Review B 107 ( 5 ) 2023.2

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.107.054501

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Andreev-like Reflection in the Pfaffian Fractional Quantum Hall Effect

Ryoi Ohashi, Ryota Nakai, Takehito Yokoyama, Yukio Tanaka, Kentaro Nomura

Journal of the Physical Society of Japan 91 ( 12 ) 2022.12

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Publishing type：Research paper (scientific journal) Publisher：Physical Society of Japan

DOI： 10.7566/jpsj.91.123703

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Anisotropic supercurrent due to inhomogeneous magnetization in ferromagnet/superconductor junctions

Takehito Yokoyama, Yukio Tanaka, Shuichi Murakami

Physical Review B 104 ( 10 ) 2021.9

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.104.104514

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Absence of Hall effect due to Berry curvature in phase space

Takehito Yokoyama

Scientific Reports 11 ( 1 ) 2021.6

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Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC

Abstract

Transverse current due to Berry curvature in phase space is formulated based on the Boltzmann equations with the semiclassical equations of motion for an electron wave packet. It is shown that the Hall effect due to the phase space Berry curvature is absent because the contributions from “anomalous velocity” and “effective Lorentz force” are completely cancelled out.

DOI： 10.1038/s41598-021-91436-4

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Other Link： https://www.nature.com/articles/s41598-021-91436-4
Creation of Superconducting Vortices by Angular Momentum of Light

Takehito Yokoyama

Journal of the Physical Society of Japan 89 ( 10 ) 103703 - 103703 2020.10

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Publishing type：Research paper (scientific journal) Publisher：Physical Society of Japan

DOI： 10.7566/jpsj.89.103703

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Topological exceptional surfaces in non-Hermitian systems with parity-time and parity-particle-hole symmetries

Ryo Okugawa, Takehito Yokoyama

Physical Review B 99 ( 4 ) 2019.1

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.99.041202

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Generic phase diagram for Weyl superconductivity in mirror-symmetric superconductors

Ryo Okugawa, Takehito Yokoyama

Physical Review B 97 ( 6 ) 2018.2

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.97.060504

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.97.060504/fulltext
Orbital Edelstein Effect as a Condensed-Matter Analog of Solenoids

Taiki Yoda, Takehito Yokoyama, Shuichi Murakami

Nano Letters 18 ( 2 ) 916 - 920 2018.2

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Publishing type：Research paper (scientific journal) Publisher：American Chemical Society (ACS)

DOI： 10.1021/acs.nanolett.7b04300

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Adiabatic and nonadiabatic spin torques induced by a spin-triplet supercurrent

Rina Takashima, Satoshi Fujimoto, Takehito Yokoyama

Physical Review B 96 ( 12 ) 2017.9

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.96.121203

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Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.96.121203/fulltext
Anisotropic Andreev reflection and Josephson effect in ballistic phosphorene

Jacob Linder, Takehito Yokoyama

Physical Review B 95 ( 14 ) 2017.4

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.95.144515

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Anisotropic Paramagnetic Meissner Effect by Spin-Orbit Coupling

Camilla Espedal, Takehito Yokoyama, Jacob Linder

Physical Review Letters 116 ( 12 ) 2016.3

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevlett.116.127002

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Anomalous Josephson Hall effect in magnet/triplet superconductor junctions

Takehito Yokoyama

Physical Review B 92 ( 17 ) 2015.11

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.92.174513

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Spin current generation and magnetic response in carbon nanotubes by the twisting phonon mode

Masato Hamada, Takehito Yokoyama, Shuichi Murakami

Physical Review B 92 ( 6 ) 2015.8

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.92.060409

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Josephson effect through magnetic skyrmions

Takehito Yokoyama, Jacob Linder

Physical Review B 92 ( 6 ) 2015.8

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.92.060503

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Current-induced Orbital and Spin Magnetizations in Crystals with Helical Structure

Taiki Yoda, Takehito Yokoyama, Shuichi Murakami

Scientific Reports 5 ( 1 ) 2015.7

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Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC

Abstract

We theoretically show that in a crystal with a helical lattice structure, orbital and spin magnetizations along a helical axis are induced by an electric current along the helical axis. We propose a simple tight-binding model for calculations and the results can be generalized to any helical crystals. The induced magnetizations are opposite for right-handed and left-handed helices. The current-induced spin magnetization along the helical axis comes from a radial spin texture on the Fermi surface. This is in sharp contrast to Rashba systems where the induced spin magnetization is perpendicular to the applied current.

DOI： 10.1038/srep12024

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Other Link： https://www.nature.com/articles/srep12024.pdf
Anomalous interference in Aharonov-Bohm rings with two Majorana bound states

Akiko Ueda, Takehito Yokoyama

Physical Review B 90 ( 8 ) 2014.8

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.90.081405

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Spin and valley transports in junctions of Dirac fermions

Takehito Yokoyama

New Journal of Physics 16 ( 8 ) 085005 - 085005 2014.8

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Publishing type：Research paper (scientific journal) Publisher：IOP Publishing

DOI： 10.1088/1367-2630/16/8/085005

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Other Link： http://stacks.iop.org/1367-2630/16/i=8/a=085005?key=crossref.75face32aa0a6824bb826a3eecbc55f6
Conductance and Fano factor in normal/ferromagnetic/normal bilayer graphene junction

Z Rashidian, F M Mojarabian, P Bayati, G Rashedi, A Ueda, T Yokoyama

Journal of Physics: Condensed Matter 26 ( 25 ) 255302 - 255302 2014.6

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Publishing type：Research paper (scientific journal) Publisher：IOP Publishing

Abstract

We theoretically investigate the transport properties of bilayer graphene junctions, where the ferromagnetic strips are attached to the middle region of the graphene sheet. In these junctions, we can control the band gap and the band structure of the bilayer graphene by using the bias voltage between the layers and the exchange field induced on the layers. The conductance and Fano factor (F ) are calculated by the Landauer–Büttiker formula. It is found that when the voltage between the layers or the exchange field are tuned, the pseudodiffusive (F = 1/3) transport turns into tunneling (F = 1) or ballistic transport (F = 0). By tuning the potential difference between the layers, one can control the spin polarization of the current.

DOI： 10.1088/0953-8984/26/25/255302

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Other Link： http://stacks.iop.org/0953-8984/26/i=25/a=255302?key=crossref.2d689354bcc7410521ceb33394c3dc5d
Giant magnetoresistance in the junction of two ferromagnets on the surface of diffusive topological insulators

Katsuhisa Taguchi, Takehito Yokoyama, Yukio Tanaka

Physical Review B 89 ( 8 ) 2014.2

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.89.085407

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Superconducting proximity effect in silicene: Spin-valley-polarized Andreev reflection, nonlocal transport, and supercurrent

Jacob Linder, Takehito Yokoyama

Physical Review B 89 ( 2 ) 2014.1

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.89.020504

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Spin diffusion and magnetoresistance in ferromagnet/topological-insulator junctions

Takehito Yokoyama, Yaroslav Tserkovnyak

Physical Review B 89 ( 3 ) 2014.1

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.89.035408

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Controllable valley and spin transport in ferromagnetic silicene junctions

Takehito Yokoyama

Physical Review B 87 ( 24 ) 2013.6

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.87.241409

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Spin-current absorption by inhomogeneous spin-orbit coupling

Kazuhiro Tsutsui, Kazuhiro Hosono, Takehito Yokoyama

Physical Review B 86 ( 15 ) 2012.10

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.86.155210

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Josephson and proximity effects on the surface of a topological insulator

Takehito Yokoyama

Physical Review B 86 ( 7 ) 2012.8

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.86.075410

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Topological charge pumping effect by the magnetization dynamics on the surface of three-dimensional topological insulators

Hiroaki T. Ueda, Akihito Takeuchi, Gen Tatara, Takehito Yokoyama

Physical Review B 85 ( 11 ) 2012.3

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.85.115110

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Charge pumping due to triplet vector chirality in ferromagnet/triplet superconductor junctions

Takehito Yokoyama

Physical Review B 84 ( 13 ) 2011.10

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.84.132504

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Electromagnetic spin polarization on the surface of topological insulator

Tetsuro Misawa, Takehito Yokoyama, Shuichi Murakami

Physical Review B 84 ( 16 ) 2011.10

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.84.165407

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Current-induced magnetization reversal on the surface of a topological insulator

Takehito Yokoyama

Physical Review B 84 ( 11 ) 2011.9

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.84.113407

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Topology of Andreev bound states with flat dispersion

Masatoshi Sato, Yukio Tanaka, Keiji Yada, Takehito Yokoyama

Physical Review B 83 ( 22 ) 2011.6

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.83.224511

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Transport properties in ferromagnetic Josephson junctions between triplet superconductors

Yousef Rahnavard, Gholamreza Rashedi, Takehito Yokoyama

Journal of Physics: Condensed Matter 23 ( 27 ) 275702 - 275702 2011.6

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Publishing type：Research paper (scientific journal) Publisher：IOP Publishing

DOI： 10.1088/0953-8984/23/27/275702

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Anomalous Meissner Effect in a Normal-Metal–Superconductor Junction with a Spin-Active Interface

Takehito Yokoyama, Yukio Tanaka, Naoto Nagaosa

Physical Review Letters 106 ( 24 ) 2011.6

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevlett.106.246601

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Spin Current in Generic Hybrid Structures due to Interfacial Spin-Orbit Scattering

Jacob Linder, Takehito Yokoyama

Physical Review Letters 106 ( 23 ) 2011.6

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevlett.106.237201

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Evaluation of spin polarization in 𝑝-In0.96Mn0.04As using Andreev reflection spectroscopy including inverse proximity effect

Tatsushi Akazaki, Takehito Yokoyama, Yukio Tanaka, Hiro Munekata, Hideaki Takayanagi

Physical Review B 83 ( 15 ) 2011.4

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.83.155212

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Transverse magnetic heat transport on the surface of a topological insulator

Takehito Yokoyama, Shuichi Murakami

Physical Review B 83 ( 16 ) 2011.4

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DOI： 10.1103/physrevb.83.161407

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Anomalous magnetic transport in ferromagnetic graphene junctions

Takehito Yokoyama, Jacob Linder

Physical Review B 83 ( 8 ) 2011.2

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.83.081418

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Surface density of states and topological edge states in noncentrosymmetric superconductors

Keiji Yada, Masatoshi Sato, Yukio Tanaka, Takehito Yokoyama

Physical Review B 83 ( 6 ) 2011.2

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevb.83.064505

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Supercurrent-induced magnetization dynamics in a Josephson junction with two misaligned ferromagnetic layers

Jacob Linder, Takehito Yokoyama

Physical Review B 83 ( 1 ) 2011.1

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DOI： 10.1103/physrevb.83.012501

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Spin and charge currents in SNS Josephson junction with f-wave pairing symmetry

Y Rahnavard, G Rashedi, T Yokoyama

Journal of Physics: Condensed Matter 22 ( 41 ) 415701 - 415701 2010.9

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Publishing type：Research paper (scientific journal) Publisher：IOP Publishing

DOI： 10.1088/0953-8984/22/41/415701

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Anomalous Andreev Bound State in Noncentrosymmetric Superconductors

Yukio Tanaka, Yoshihiro Mizuno, Takehito Yokoyama, Keiji Yada, Masatoshi Sato

Physical Review Letters 105 ( 9 ) 2010.8

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DOI： 10.1103/physrevlett.105.097002

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Gate-Controlled One-Dimensional Channel on the Surface of a 3D Topological Insulator

Takehito Yokoyama, Alexander V. Balatsky, Naoto Nagaosa

Physical Review Letters 104 ( 24 ) 2010.6

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Publishing type：Research paper (scientific journal) Publisher：American Physical Society (APS)

DOI： 10.1103/physrevlett.104.246806

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Theoretical study of the dynamics of magnetization on the topological surface

Takehito Yokoyama, Jiadong Zang, Naoto Nagaosa

Physical Review B 81 ( 24 ) 2010.6

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DOI： 10.1103/physrevb.81.241410

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Signature of odd-frequency pairing correlations induced by a magnetic interface

Jacob Linder, Asle Sudbø, Takehito Yokoyama, Roland Grein, Matthias Eschrig

Physical Review B 81 ( 21 ) 2010.6

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DOI： 10.1103/physrevb.81.214504

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Interplay between superconductivity and ferromagnetism on a topological insulator

Jacob Linder, Yukio Tanaka, Takehito Yokoyama, Asle Sudbø, Naoto Nagaosa

Physical Review B 81 ( 18 ) 2010.5

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DOI： 10.1103/physrevb.81.184525

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Theory of Pairing Symmetry in Fulde–Ferrell–Larkin–Ovchinnikov Vortex State and Vortex Lattice

Takehito Yokoyama, Masanori Ichioka, Yukio Tanaka

Journal of the Physical Society of Japan 79 ( 3 ) 034702 - 034702 2010.3

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Publishing type：Research paper (scientific journal) Publisher：Physical Society of Japan

DOI： 10.1143/jpsj.79.034702

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Anomalous magnetoresistance of a two-dimensional ferromagnet/ferromagnet junction on the surface of a topological insulator

Takehito Yokoyama, Yukio Tanaka, Naoto Nagaosa

Physical Review B 81 ( 12 ) 2010.3

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DOI： 10.1103/physrevb.81.121401

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Pure spin current generated by reflection at a normal metal/two-dimensional electron gas interface

Jacob Linder, Takehito Yokoyama, Asle Sudbø

Physical Review B 81 ( 7 ) 2010.2

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DOI： 10.1103/physrevb.81.075312

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Unconventional Superconductivity on a Topological Insulator

Jacob Linder, Yukio Tanaka, Takehito Yokoyama, Asle Sudbø, Naoto Nagaosa

Physical Review Letters 104 ( 6 ) 2010.2

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DOI： 10.1103/physrevlett.104.067001

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Spin-polarized Josephson current in superconductor/ferromagnet/superconductor junctions with inhomogeneous magnetization

Mohammad Alidoust, Jacob Linder, Gholamreza Rashedi, Takehito Yokoyama, Asle Sudbø

Physical Review B 81 ( 1 ) 2010.1

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DOI： 10.1103/physrevb.81.014512

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Theory of charge transport in ferromagnetic semiconductor/s-wave superconductor junction

Yoshihiro Mizuno, Takehito Yokoyama, Yukio Tanaka

Physical Review B 80 ( 19 ) 2009.11

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DOI： 10.1103/physrevb.80.195307

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Anomalous finite size effects on surface states in the topological insulator Bi2Se3

Jacob Linder, Takehito Yokoyama, Asle Sudbø

Physical Review B 80 ( 20 ) 2009.11

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DOI： 10.1103/physrevb.80.205401

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Josephson current in graphene: Role of unconventional pairing symmetries

Jacob Linder, Annica M. Black-Schaffer, Takehito Yokoyama, Sebastian Doniach, Asle Sudbø

Physical Review B 80 ( 9 ) 2009.9

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DOI： 10.1103/physrevb.80.094522

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Tuning odd triplet superconductivity by spin pumping

Takehito Yokoyama, Yaroslav Tserkovnyak

Physical Review B 80 ( 10 ) 2009.9

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DOI： 10.1103/physrevb.80.104416

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Manipulation of the Majorana Fermion, Andreev Reflection, and Josephson Current on Topological Insulators

Yukio Tanaka, Takehito Yokoyama, Naoto Nagaosa

Physical Review Letters 103 ( 10 ) 2009.9

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DOI： 10.1103/physrevlett.103.107002

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Spin-transfer torque and magnetoresistance in superconducting spin valves

Jacob Linder, Takehito Yokoyama, Asle Sudbø

Physical Review B 79 ( 22 ) 2009.6

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DOI： 10.1103/physrevb.79.224504

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Giant Spin Rotation in the Junction between a Normal Metal and a Quantum Spin Hall System

Takehito Yokoyama, Yukio Tanaka, Naoto Nagaosa

Physical Review Letters 102 ( 16 ) 2009.4

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DOI： 10.1103/physrevlett.102.166801

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Pairing Symmetry Conversion by Spin-Active Interfaces in Magnetic Normal-Metal–Superconductor Junctions

Jacob Linder, Takehito Yokoyama, Asle Sudbø, Matthias Eschrig

Physical Review Letters 102 ( 10 ) 2009.3

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DOI： 10.1103/physrevlett.102.107008

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Theory of superconducting and magnetic proximity effect in S/F structures with inhomogeneous magnetization textures and spin-active interfaces

Jacob Linder, Takehito Yokoyama, Asle Sudbø

Physical Review B 79 ( 5 ) 2009.2

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DOI： 10.1103/physrevb.79.054523

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Tunneling conductance and local density of states in time-reversal symmetry breaking superconductors under the influence of an external magnetic field

Mihail A. Silaev, Takehito Yokoyama, Jacob Linder, Yukio Tanaka, Asle Sudbø

Physical Review B 79 ( 5 ) 2009.2

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DOI： 10.1103/physrevb.79.054508

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Theory of topological spin current in noncentrosymmetric superconductors

Yukio Tanaka, Takehito Yokoyama, Alexander V. Balatsky, Naoto Nagaosa

Physical Review B 79 ( 6 ) 2009.2

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DOI： 10.1103/physrevb.79.060505

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Strong Parity Mixing in the Fulde-Ferrell-Larkin-Ovchinnikov Superconductivity in Systems with Coexisting Spin and Charge Fluctuations

Hirohito Aizawa, Kazuhiko Kuroki, Takehito Yokoyama, Yukio Tanaka

Physical Review Letters 102 ( 1 ) 2009.1

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DOI： 10.1103/physrevlett.102.016403

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Density of states near a vortex core in ferromagnetic superconductors: Application to STM measurements

Jacob Linder, Takehito Yokoyama, Asle Sudbø

Physical Review B 78 ( 6 ) 2008.8

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DOI： 10.1103/physrevb.78.064520

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Theory of pairing symmetry inside the Abrikosov vortex core

Takehito Yokoyama, Yukio Tanaka, Alexander A. Golubov

Physical Review B 78 ( 1 ) 2008.7

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DOI： 10.1103/physrevb.78.012508

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Strongly spin-polarized current generated in a Zeeman-split unconventional superconductor

Jacob Linder, Takehito Yokoyama, Yukio Tanaka, Asle Sudbø

Physical Review B 78 ( 1 ) 2008.7

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DOI： 10.1103/physrevb.78.014516

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Theory of Fulde–Ferrell–Larkin–Ovchinnikov State of Superconductors with and without Inversion Symmetry: Hubbard Model Approach

Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

Journal of the Physical Society of Japan 77 ( 6 ) 064711 - 064711 2008.6

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Publishing type：Research paper (scientific journal) Publisher：Physical Society of Japan

DOI： 10.1143/jpsj.77.064711

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Role of interface transparency and spin-dependent scattering in diffusive ferromagnet/superconductor heterostructures

Jacob Linder, Takehito Yokoyama, Asle Sudbø

Physical Review B 77 ( 17 ) 2008.5

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DOI： 10.1103/physrevb.77.174514

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Identifying the odd-frequency pairing state of superconductors by a field-induced Josephson effect

Jacob Linder, Takehito Yokoyama, Asle Sudbø

Physical Review B 77 ( 17 ) 2008.5

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DOI： 10.1103/physrevb.77.174507

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Supercurrent Switch in Graphene pi Junctions

Jacob Linder, Takehito Yokoyama, Daniel Huertas-Hernando, Asle Sudbø

Physical Review Letters 100 ( 18 ) 2008.5

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DOI： 10.1103/physrevlett.100.187004

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Quantum transport in a normal metal/odd-frequency superconductor junction

Jacob Linder, Takehito Yokoyama, Yukio Tanaka, Yasuhiro Asano, Asle Sudbø

Physical Review B 77 ( 17 ) 2008.5

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DOI： 10.1103/physrevb.77.174505

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Chirality Sensitive Effect on Surface States in Chiral p-Wave Superconductors

Takehito Yokoyama, Christian Iniotakis, Yukio Tanaka, Manfred Sigrist

Physical Review Letters 100 ( 17 ) 2008.4

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DOI： 10.1103/physrevlett.100.177002

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Heat transport by Dirac fermions in normal/superconducting graphene junctions

Takehito Yokoyama, Jacob Linder, Asle Sudbø

Physical Review B 77 ( 13 ) 2008.4

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DOI： 10.1103/physrevb.77.132503

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Controllable spin transport in ferromagnetic graphene junctions

Takehito Yokoyama

Physical Review B 77 ( 7 ) 2008.2

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DOI： 10.1103/physrevb.77.073413

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Theory of macroscopic quantum tunneling in high-Tc c-axis Josephson junctions

Takehito Yokoyama, Shiro Kawabata, Takeo Kato, Yukio Tanaka

Physical Review B 76 ( 13 ) 2007.10

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DOI： 10.1103/physrevb.76.134501

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Quantitative model for the ICR product in d-wave Josephson junctions

Takehito Yokoyama, Yuki Sawa, Yukio Tanaka, Alexander A. Golubov, Atsutaka Maeda, Akira Fujimaki

Physical Review B 76 ( 5 ) 2007.8

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DOI： 10.1103/physrevb.76.052508

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Andreev bound states and tunneling characteristics of a noncentrosymmetric superconductor

C. Iniotakis, N. Hayashi, Y. Sawa, T. Yokoyama, U. May, Y. Tanaka, M. Sigrist

Physical Review B 76 ( 1 ) 2007.7

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DOI： 10.1103/physrevb.76.012501

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Enhanced triplet superconductivity in noncentrosymmetric systems

Takehito Yokoyama, Seiichiro Onari, Yukio Tanaka

Physical Review B 75 ( 17 ) 2007.5

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DOI： 10.1103/physrevb.75.172511

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Theory of the tunneling spectroscopy of ferromagnetic superconductors

T. Yokoyama, Y. Tanaka

Physical Review B 75 ( 13 ) 2007.4

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DOI： 10.1103/physrevb.75.132503

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Manifestation of the odd-frequency spin-triplet pairing state in diffusive ferromagnet/superconductor junctions

T. Yokoyama, Y. Tanaka, A. A. Golubov

Physical Review B 75 ( 13 ) 2007.4

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DOI： 10.1103/physrevb.75.134510

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Quasiclassical Green’s function theory of the Josephson effect in chiral p-wave superconductor/diffusive normal metal/chiral p-wave superconductor junctions

Y. Sawa, T. Yokoyama, Y. Tanaka, A. A. Golubov

Physical Review B 75 ( 13 ) 2007.4

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DOI： 10.1103/physrevb.75.134508

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Theory of the Josephson effect in unconventional superconducting junctions with diffusive barriers

T. Yokoyama, Y. Tanaka, A. A. Golubov

Physical Review B 75 ( 9 ) 2007.3

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DOI： 10.1103/physrevb.75.094514

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Angular dependence of Josephson currents in unconventional superconducting junctions

T. Yokoyama, Y. Sawa, Y. Tanaka, A. A. Golubov

Physical Review B 75 ( 2 ) 2007.1

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DOI： 10.1103/physrevb.75.020502

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Josephson current through superconductor/diffusive-normal-metal/superconductor junctions: Interference effects governed by pairing symmetry

Yasuhiro Asano, Yukio Tanaka, Takehito Yokoyama, Satoshi Kashiwaya

Physical Review B 74 ( 6 ) 2006.8

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DOI： 10.1103/physrevb.74.064507

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Charge transport in two-dimensional electron gas/insulator/superconductor junctions with Rashba spin-orbit coupling

T. Yokoyama, Y. Tanaka, J. Inoue

Physical Review B 74 ( 3 ) 2006.7

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DOI： 10.1103/physrevb.74.035318

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Nonmonotonic temperature dependence of critical current in diffusive d-wave junctions

T. Yokoyama, Y. Tanaka, A. A. Golubov, Y. Asano

Physical Review B 73 ( 14 ) 2006.4

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DOI： 10.1103/physrevb.73.140504

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Resonant proximity effect in normal metal/diffusive ferromagnet/superconductor junctions

T. Yokoyama, Y. Tanaka, A. A. Golubov

Physical Review B 73 ( 9 ) 2006.3

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DOI： 10.1103/physrevb.73.094501

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Theory of thermal and charge transport in diffusive normal metal/superconductor junctions

T. Yokoyama, Y. Tanaka, A. A. Golubov, Y. Asano

Physical Review B 72 ( 21 ) 2005.12

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DOI： 10.1103/physrevb.72.214513

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Intrinsically s-wave-like property of triplet superconductors with spin-orbit coupling

T. Yokoyama, Y. Tanaka, J. Inoue

Physical Review B 72 ( 22 ) 2005.12

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DOI： 10.1103/physrevb.72.220504

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Resonant peak in the density of states in normal-metal/diffusive-ferromagnet/superconductor junctions

T. Yokoyama, Y. Tanaka, A. A. Golubov

Physical Review B 72 ( 5 ) 2005.8

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DOI： 10.1103/physrevb.72.052512

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Theory of enhanced proximity effect by midgap Andreev resonant state in diffusive normal-metal/triplet superconductor junctions

Y. Tanaka, S. Kashiwaya, T. Yokoyama

Physical Review B 71 ( 9 ) 2005.3

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DOI： 10.1103/physrevb.71.094513

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Influence of magnetic impurities on charge transport in diffusive-normal-metal/superconductor junctions

T. Yokoyama, Y. Tanaka, A. A. Golubov, J. Inoue, Y. Asano

Physical Review B 71 ( 9 ) 2005.3

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DOI： 10.1103/physrevb.71.094506

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Awards

科学技術分野の文部科学大臣表彰若手科学者賞

2017.4

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東京工業大学理学系若手研究奨励賞

2015.11

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第5回日本物理学会若手奨励賞

2011.9

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Research Projects

カイラル結晶におけるカイラル軌道物性の解明とその制御

Grant number：25K07221 2025.4 - 2030.3

日本学術振興会科学研究費助成事業基盤研究(C)

横山毅人

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Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）

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