日本表面真空科学会会誌編集委員  

  日本表面科学会講演大会委員  

Efficiency of electron doping to monolayer hexagonal boron nitride by alkali metals

S. Ichinokura, A. Hemmi, H. Cun, K. Tanaka, R. Shimizu, T. Hitosugi, T. Greber, T. Hirahara

Applied Physics Letters   2023.2

Temperature dependence of the superconducting gap of single-layer FeSe/SrTiO3 : Direct comparison between transport and spectroscopic measurements

Koshiro Ide, Tomoaki Tanaka, Asger Pedersen, Satoru Ichinokura, Toru Hirahara

Physical Review Materials   2022.12

Formation of monolayer V5Se8 from multilayer VSe2 films via V- and Se-desorption

Kazuki Sumida, Shotaro Kusaka, Yukiharu Takeda, Katsuyoshi Kobayashi, Toru Hirahara

Physical Review B   2022.11

Modifying the Interface between the Solvated Ionic Liquid Electrolyte and Positive Electrode to Boost Lithium-Ion Battery Performance

Jun Deng, Kazunori Nishio, Satoru Ichinokura, Yuki Watanabe, Kurei Edamura, Ryo Nakayama, Ryota Shimizu, Toru Hirahara, Taro Hitosugi

ACS Applied Energy Materials   2022.9

Van Hove singularity and Lifshitz transition in thickness-controlled Li-intercalated graphene

S. Ichinokura, M. Toyoda, M. Hashizume, K. Horii, S. Kusaka, S. Ideta, K. Tanaka, R. Shimizu, T. Hitosugi, S. Saito, T. Hirahara

Physical Review B   105 ( 23 )   2022.6

Fabrication of (Bi2)m(Bi2Te3)n superlattice films by Te desorption from a pristine Bi2Te3 film

S. Kusaka, T. T. Sasaki, K. Sumida, S. Ichinokura, S. Ideta, K. Tanaka, K. Hono, T. Hirahara

Applied Physics Letters   120 ( 17 )   173102 - 173102   2022.4

Bulk and surface electronic structure of Bi4Te3 from GW calculations and photoemission experiments

Dmitrii Nabok, Murat Tas, Shotaro Kusaka, Engin Durgun, Christoph Friedrich, Gustav Bihlmayer, Stefan Blügel, Toru Hirahara, Irene Aguilera

Physical Review Materials   6 ( 3 )   2022.3

Two-Dimensional Superconductivity of Ca-Intercalated Graphene on SiC: Vital Role of the Interface between Monolayer Graphene and the Substrate

Haruko Toyama, Ryota Akiyama, Satoru Ichinokura, Mizuki Hashizume, Takushi Iimori, Yukihiro Endo, Rei Hobara, Tomohiro Matsui, Kentaro Horii, Shunsuke Sato, Toru Hirahara, Fumio Komori, Shuji Hasegawa

ACS Nano   16 ( 3 )   3582 - 3592   2022.3

Substrate-induced broken C4 symmetry and gap variation in superconducting single-layer FeSe/SrTiO3−(13×13)

Wen Si, Tomoaki Tanaka, Satoru Ichinokura, Toru Hirahara

Physical Review B   105 ( 10 )   2022.3

Soft-Magnetic Skyrmions Induced by Surface-State Coupling in an Intrinsic Ferromagnetic Topological Insulator Sandwich Structure

Takuya Takashiro, Ryota Akiyama, Ivan A. Kibirev, Andrey V. Matetskiy, Ryosuke Nakanishi, Shunsuke Sato, Takuro Fukasawa, Taisuke Sasaki, Haruko Toyama, Kota L. Hiwatari, Andrey V. Zotov, Alex, er A. Saranin, Toru Hirahara, Shuji Hasegawa

Nano Letters   22 ( 3 )   881 - 887   2022.2

Short-range magnetic interaction in a monolayer 1T−VSe2 film revealed by element-specific x-ray magnetic circular dichroism

Kazuki Sumida, Yukiharu Takeda, Shotaro Kusaka, Katsuyoshi Kobayashi, Toru Hirahara

Physical Review Materials   6 ( 1 )   2022.1

Ionic Rectification across Ionic and Mixed Conductor Interfaces

Kazunori Nishio, Satoru Ichinokura, Akitaka Nakanishi, Koji Shimizu, Yasutaka Kobayashi, Naoto Nakamura, Daisuke Imazeki, Ryota Shimizu, Toru Hirahara, Satoshi Watanabe, Taro Hitosugi

Nano Letters   2021.12

Monolayer FeSe films grown on SrTiO3 with controlled surface superstructures studied by scanning probes: evidence for interface superconductivity

Tomoaki Tanaka, Satoru Ichinokura, Asger Pedersen, Toru Hirahara

Japanese Journal of Applied Physics   60 ( SE )   SE0801 - SE0801   2021.9

Absence of ferromagnetism in MnBi2Te4/Bi2Te3 down to 6 K

T. Fukasawa, S. Kusaka, K. Sumida, M. Hashizume, S. Ichinokura, Y. Takeda, S. Ideta, K. Tanaka, R. Shimizu, T. Hitosugi, T. Hirahara

Physical Review B   103 ( 20 )   2021.5

Fabrication of a novel magnetic topological heterostructure and temperature evolution of its massive Dirac cone

T. Hirahara, M. M. Otrokov, T. T. Sasaki, K. Sumida, Y. Tomohiro, S. Kusaka, Y. Okuyama, S. Ichinokura, M. Kobayashi, Y. Takeda, K. Amemiya, T. Shirasawa, S. Ideta, K. Miyamoto, K. Tanaka, S. Kuroda, T. Okuda, K. Hono, S. V. Eremeev, E. V. Chulkov

Nature Communications   11 ( 1 )   2020.12

Scattering of topological surface-state carriers at steps on surfaces

Naoya Fukui, Rei Hobara, Akari Takayama, Ryota Akiyama, Toru Hirahara, Shuji Hasegawa

Physical Review B   102 ( 11 )   2020.9

Interfacial Superconductivity in FeSe Ultrathin Films on SrTiO3 Probed by In Situ Independently Driven Four-Point-Probe Measurements Reviewed International journal

Asger K. Pedersen, Satoru Ichinokura, Tomoaki Tanaka, Ryota Shimizu, Taro Hitosugi, Toru Hirahara

Physical Review Letters   124 ( 22 )   227002 - 227002   2020.6

Superconducting dome revealed by surface structure dependence in single unit cell FeSe on SrTiO3(001) Reviewed

Tomoaki Tanaka, Kenta Akiyama, Satoru Ichinokura, Ryota Shimizu, Taro Hitosugi, Toru Hirahara

Physical Review B   101 ( 20 )   205421   2020.5

Metallic band structure of CaF2 thin films grown on silicon(1 1 1): Possible formation of CaSi2 Reviewed

Yuzuru Takahashi, Satoru Ichinokura, Ryota Shimizu, Susumu Shiraki, Taro Hitosugi, Toru Hirahara

Applied Surface Science   509 ( 15 )   144687 - 144687   2020.4

Role of hybridization and magnetic effects in massive Dirac cones: Magnetic topological heterostructures with controlled film thickness Reviewed

Okuyama, Y., Ishikawa, R., Kuroda, S., Hirahara, T.

Applied Physics Letters   114 ( 5 )   051602 - 051602   2019.2

Flattening and manipulation of the electronic structure of h-BN/Rh(111) nanomesh upon Sn intercalation Reviewed

Yuya Sugiyama, Carlo Bernard, Yuma Okuyama, Shin-ichiro Ideta, Kiyohisa Tanaka, Thomas Greber, Toru Hirahara

Surface Science   672-673   33 - 38   2018.6

Comment on Quantum transport in the surface states of epitaxial Bi(111) thin films Reviewed

Toru Hirahara, Shuji Hasegawa

Physical Review B   97 ( 20 )   3   2018.5

Superconductivity of single unit cell FeSe/SrTiO3(001): Substrate-surface superstructure dependence Reviewed

Tanaka, T., Akiyama, K., Yoshino, R., Hirahara, T.

Physical Review B   98 ( 12 )   5 - 5   2018

Large-Gap Magnetic Topological Heterostructure Formed by Subsurface Incorporation of a Ferromagnetic Layer Reviewed

Toru Hirahara, Sergey V. Eremeev, Tetsuroh Shirasawa, Yuma Okuyama, Takayuki Kubo, Ryosuke Nakanishi, Ryota Akiyama, Akan Takayama, Tetsuya Hajiri, Shin-ichiro Ideta, Masaharu Matsunami, Kazuki Sumida, Koji Miyamoto, Yasumasa Takagi, Kiyohisa Tanaka, Taichi Okuda, Toshihiko Yokoyama, Shin-ichi Kimura, Shuji Hasegawa, Evgueni V. Chulkov

NANO LETTERS   17 ( 6 )   3493 - 3500   2017.6

Growth and atomic structure of tellurium thin films grown on Bi2Te3 Reviewed

Yuma Okuyama, Yuya Sugiyama, Shin-ichiro Ideta, Kiyohisa Tanaka, Toru Hirahara

APPLIED SURFACE SCIENCE   398   125 - 129   2017.3

Development of a convenient in situ UHV scanning tunneling potentiometry system using a tip holder equipped with current-injection wires Reviewed

Tomonori Nakamura, Ryo Yoshino, Rei Hobara, Shuji Hasegawa, Toru Hirahara

e-Journal of Surface Science and Nanotechnology   14   216 - 224   2016.12

Role of Quantum and Surface-State Effects in the Bulk Fermi-Level Position of Ultrathin Bi Films Reviewed

T. Hirahara, T. Shirai, T. Hajiri, M. Matsunami, K. Tanaka, S. Kimura, S. Hasegawa, K. Kobayashi

PHYSICAL REVIEW LETTERS   115 ( 10 )   2015.9

Direct observation of a gap opening in topological interface states of MnSe/Bi2Se3 heterostructure Reviewed

A. V. Matetskiy, I. A. Kibirev, T. Hirahara, S. Hasegawa, A. V. Zotov, A. A. Saranin

APPLIED PHYSICS LETTERS   107 ( 9 )   2015.8

Target element dependent spin-orbit coupling in polarized He-4(+) ion scattering Reviewed

T. T. Suzuki, O. Sakai, S. Ichinokura, T. Hirahara, S. Hasegawa

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS   354   163 - 166   2015.7

The Rashba and quantum size effects in ultrathin Bi films Reviewed

Toru Hirahara

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA   201   98 - 104   2015.5

Electron-spin-dependent He-4(+) ion scattering on Bi surfaces Reviewed

S. Ichinokura, T. Hirahara, O. Sakai, S. Hasegawa, T. T. Suzuki

RADIATION EFFECTS AND DEFECTS IN SOLIDS   169 ( 12 )   1003 - 1009   2014.12

In situ Magnetotransport Measurements in Ultrathin Bi Films: Evidence for Surface-Bulk Coherent Transport Reviewed

Masaki Aitani, Toru Hirahara, Satoru Ichinokura, Masahiro Hanaduka, Dongyoon Shin, Shuji Hasegawa

PHYSICAL REVIEW LETTERS   113 ( 20 )   5   2014.11

In situ microfabrication and measurements of Bi2Se3 ultrathin films in a multichamber system with a focused ion beam, molecular beam epitaxy, and four-tip scanning tunneling microscope Reviewed

Naoya Fukui, Rei Hobara, Toru Hirahara, Shuji Hasegawa

e-Journal of Surface Science and Nanotechnology   12   423 - 430   2014.10

Redox Control and High Conductivity of Nickel Bis(dithiolene) Complex pi-Nanosheet: A Potential Organic Two-Dimensional Topological Insulator Reviewed

Tetsuya Kambe, Ryota Sakamoto, Tetsuro Kusamoto, Tigmansu Pal, Naoya Fukui, Ken Hoshiko, Takahiro Shimojima, Zhengfei Wang, Toru Hirahara, Kyoko Ishizaka, Shuji Hasegawa, Feng Liu, Hiroshi Nishihara

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   136 ( 41 )   14357 - 14360   2014.10

Structure determination of multilayer silicene grown on Ag(111) films by electron diffraction: Evidence for Ag segregation at the surface (vol 89, 241403, 2014) Reviewed

T. Shirai, T. Shirasawa, T. Hirahara, N. Fukui, T. Takahashi, S. Hasegawa

PHYSICAL REVIEW B   90 ( 3 )   1   2014.7

Structure determination of multilayer silicene grown on Ag(111) films by electron diffraction: Evidence for Ag segregation at the surface Reviewed

Terufusa Shirai, Tetsuroh Shirasawa, Toru Hirahara, Naoya Fukui, Toshio Takahashi, Shuji Hasegawa

PHYSICAL REVIEW B   89 ( 24 )   5   2014.6

Structure and transport properties of Cu-doped Bi2Se3 films Reviewed

Tetsuroh Shirasawa, Masato Sugiki, Toru Hirahara, Masaki Aitani, Terufusa Shirai, Shuji Hasegawa, Toshio Takahashi

PHYSICAL REVIEW B   89 ( 19 )   6   2014.5

Anisotropic electronic conduction in metal nanofilms grown on a one-dimensional surface superstructure Reviewed

Naoka Nagamura, Rei Hobara, Tomoya Uetake, Toru Hirahara, Manami Ogawa, Taichi Okuda, Ke He, P. Moras, P. M. Sheverdyaeva, C. Carbone, Katsuyoshi Kobayashi, Iwao Matsuda, Shuji Hasegawa

PHYSICAL REVIEW B   89 ( 12 )   2014.3

Fermi-level tuning of topological insulator thin films Reviewed

Masaki Aitani, Yusuke Sakamoto, Toru Hirahara, Manabu Yamada, Hidetoshi Miyazaki, Masaharu Matsunami, Shin-Ichi Kimura, Shuji Hasegawa

Japanese Journal of Applied Physics   52 ( 11 )   2013.11

In situ transport measurements on ultrathin Bi(111) films using a magnetic tip: possible detection of current-induced spin polarization in the surface states Reviewed

Takeshi Tono, Toru Hirahara, Shuji Hasegawa

NEW JOURNAL OF PHYSICS   15   14   2013.10

Magnetoresistance Measurements of a Superconducting Surface State of In-Induced and Pb-Induced Structures on Si(111) Reviewed

Manabu Yamada, Toru Hirahara, Shuji Hasegawa

PHYSICAL REVIEW LETTERS   110 ( 23 )   2013.6

Atomic and Electronic Structure of Ultrathin Bi(111) Films Grown on Bi2Te3(111) Substrates: Evidence for a Strain-Induced Topological Phase Transition (vol 109, 227401, 2012) Reviewed

T. Hirahara, N. Fukui, T. Shirasawa, M. Yamada, M. Aitani, H. Miyazaki, M. Matsunami, S. Kimura, T. Takahashi, S. Hasegawa, K. Kobayashi

PHYSICAL REVIEW LETTERS   110 ( 14 )   1   2013.4

Evidence of Dirac fermions in multilayer silicene Reviewed

Paola De Padova, Patrick Vogt, Andrea Resta, Jose Avila, Ivy Razado-Colambo, Claudio Quaresima, Carlo Ottaviani, Bruno Olivieri, Thomas Bruhn, Toru Hirahara, Terufusa Shirai, Shuji Hasegawa, Maria Carmen Asensio, Guy Le Lay

APPLIED PHYSICS LETTERS   102 ( 16 )   2013.4

Structure of a Bi/Bi2Te3 heteroepitaxial film studied by x-ray crystal truncation rod scattering Reviewed

Tetsuroh Shirasawa, Junichi Tsunoda, Toru Hirahara, Toshio Takahashi

PHYSICAL REVIEW B   87 ( 7 )   5   2013.2

Atomic and Electronic Structure of Ultrathin Bi(111) Films Grown on Bi2Te3(111) Substrates: Evidence for a Strain-Induced Topological Phase Transition Reviewed

T. Hirahara, N. Fukui, T. Shirasawa, M. Yamada, M. Aitani, H. Miyazaki, M. Matsunami, S. Kimura, T. Takahashi, S. Hasegawa, K. Kobayashi

PHYSICAL REVIEW LETTERS   109 ( 22 )   5   2012.11

Anisotropic conductivity of the Si(111)4x1-In surface: Transport mechanism determined by the temperature dependence Reviewed

Tomoya Uetake, Toru Hirahara, Yoichi Ueda, Naoka Nagamura, Rei Hobara, Shuji Hasegawa

PHYSICAL REVIEW B   86 ( 3 )   2012.7

Atomic structure of two-dimensional binary surface alloys: Si(111)-root 21 x root 21 superstructure Reviewed

Y. Fukaya, I. Matsuda, M. Hashimoto, K. Kubo, T. Hirahara, S. Yamazaki, W. H. Choi, H. W. Yeom, S. Hasegawa, A. Kawasuso, A. Ichimiya

SURFACE SCIENCE   606 ( 11-12 )   919 - 923   2012.6

Hydrogen-Induced Surface Metallization of SrTiO3(001) Reviewed

M. D'Angelo, R. Yukawa, K. Ozawa, S. Yamamoto, T. Hirahara, S. Hasegawa, M. G. Silly, F. Sirotti, I. Matsuda

PHYSICAL REVIEW LETTERS   108 ( 11 )   2012.3

Surface relaxation of topological insulators: Influence on the electronic structure Reviewed

N. Fukui, T. Hirahara, T. Shirasawa, T. Takahashi, K. Kobayashi, S. Hasegawa

PHYSICAL REVIEW B   85 ( 11 )   2012.3

Surface electrical conductivity measurement system with micro-four-point probes at sub-Kelvin temperature under high magnetic field in ultrahigh vacuum Reviewed

Manabu Yamada, Toru Hirahara, Rei Hobara, Shuji Hasegawa, Hiroyuki Mizuno, Yutaka Miyatake, Toshihiko Nagamura

e-Journal of Surface Science and Nanotechnology   10   400 - 405   2012

Atomic and electronic structures of Si(111)-√21 × √21 superstructure Reviewed

Y. Fukaya, K. Kubo, T. Hirahara, S. Yamazaki, W. H. Choi, H. W. Yeom, A. Kawasuso, S. Hasegawa, I. Matsuda

e-Journal of Surface Science and Nanotechnology   10   310 - 314   2012

Interfacing 2D and 3D Topological Insulators: Bi(111) Bilayer on Bi2Te3 Reviewed

Toru Hirahara, Gustav Bihlmayer, Yusuke Sakamoto, Manabu Yamada, Hidetoshi Miyazaki, Shin-ichi Kimura, Stefan Bluegel, Shuji Hasegawa

PHYSICAL REVIEW LETTERS   107 ( 16 )   2011.10

Manipulation of magnetic anisotropy of Co ultrathin films by substrate engineering Reviewed

Yuki Saisyu, Toru Hirahara, Rei Hobara, Shuji Hasegawa

JOURNAL OF APPLIED PHYSICS   110 ( 5 )   2011.9

Enhanced spin relaxation in an ultrathin metal film by the Rashba-type surface Reviewed

Nobuhiro Miyata, Hisashi Narita, Manami Ogawa, Ayumi Harasawa, Rei Hobara, Toru Hirahara, P. Moras, D. Topwal, C. Carbone, Shuji Hasegawa, Iwao Matsuda

PHYSICAL REVIEW B   83 ( 19 )   2011.5

Development of a Surface Magneto-Transport Measurement System with Multi-Probes and the In situ Measurement of Bi Nanofilms Prepared on Si(111)7x7 Reviewed

Nobuhiro Miyata, Rei Hobara, Hisashi Narita, Toru Hirahara, Shuji Hasegawa, Iwao Matsuda

JAPANESE JOURNAL OF APPLIED PHYSICS   50 ( 3 )   2011.3

Electron compound nature in a surface atomic layer of a two-dimensional hexagonal lattice Reviewed

Iwao Matsuda, Fumitaka Nakamura, Keisuke Kubo, Toru Hirahara, Shiro Yamazaki, Won Hoon Choi, Han Woong Yeom, Hisashi Narita, Yuki Fukaya, Mie Hashimoto, Atsuo Kawasuso, Masanori Ono, Yukio Hasegawa, Shuji Hasegawa, Katsuyoshi Kobayashi

PHYSICAL REVIEW B   82 ( 16 )   2010.10

Anomalous transport in an n-type topological insulator ultrathin Bi2Se3 film Reviewed

Toru Hirahara, Yusuke Sakamoto, Yasuo Takeichi, Hidetoshi Miyazaki, Shin-ichi Kimura, Iwao Matsuda, Akito Kakizaki, Shuji Hasegawa

PHYSICAL REVIEW B   82 ( 15 )   2010.10

Direct mapping of the spin-filtered surface bands of a three-dimensional quantum spin Hall insulator (vol 81, 041309, 2010) Reviewed

Akinori Nishide, Alexey A. Taskin, Yasuo Takeichi, Taichi Okuda, Akito Kakizaki, Toru Hirahara, Kan Nakatsuji, Fumio Komori, Yoichi Ando, Iwao Matsuda

PHYSICAL REVIEW B   82 ( 3 )   2010.7

Conductance transition and interwire ordering of Pb nanowires on Si(557) Reviewed

Harumo Morikawa, Keun Su Kim, Yusuke Kitaoka, Toru Hirahara, Shuji Hasegawa, Han Woong Yeom

PHYSICAL REVIEW B   82 ( 4 )   2010.7

Development of an UHV-SMOKE system using permanent magnets Reviewed

Yuto Niinuma, Yuki Saisyu, Toru Hirahara, Rei Hobara, Shuji Hasegawa, Hiroyuki Mizuno, Toshihiko Nagamura

e-Journal of Surface Science and Nanotechnology   8   298 - 302   2010.6

Spin-polarized surface bands of a three-dimensional topological insulator studied by high-resolution spin- and angle-resolved photoemission spectroscopy Reviewed

Akinori Nishide, Yasuo Takeichi, Taichi Okuda, Alexey A. Taskin, Toru Hirahara, Kan Nakatsuji, Fumio Komori, Akito Kakizaki, Yoichi Ando, Iwao Matsuda

NEW JOURNAL OF PHYSICS   12   2010.6

Topological metal at the surface of an ultrathin Bi1-xSbx alloy film Reviewed

T. Hirahara, Y. Sakamoto, Y. Saisyu, H. Miyazaki, S. Kimura, T. Okuda, I. Matsuda, S. Murakami, S. Hasegawa

PHYSICAL REVIEW B   81 ( 16 )   2010.4

Spectroscopic evidence of a topological quantum phase transition in ultrathin Bi2Se3 films Reviewed

Yusuke Sakamoto, Toru Hirahara, Hidetoshi Miyazaki, Shin-ichi Kimura, Shuji Hasegawa

PHYSICAL REVIEW B   81 ( 16 )   2010.4

Direct Spectroscopic Evidence of Spin-Dependent Hybridization between Rashba-Split Surface States and Quantum-Well States Reviewed

Ke He, Yasuo Takeichi, Manami Ogawa, Taichi Okuda, P. Moras, D. Topwal, Ayumi Harasawa, Toru Hirahara, C. Carbone, Akito Kakizaki, Iwao Matsuda

PHYSICAL REVIEW LETTERS   104 ( 15 )   2010.4

Phase transition temperatures determined by different experimental methods: Si(111)4X1-In surface with defects Reviewed

Takahide Shibasaki, Naoka Nagamura, Toru Hirahara, Hiroyuki Okino, Shiro Yamazaki, Woosang Lee, Hyungjoon Shim, Rei Hobara, Iwao Matsuda, Geunseop Lee, Shuji Hasegawa

PHYSICAL REVIEW B   81 ( 3 )   2010.1

Direct mapping of the spin-filtered surface bands of a three-dimensional quantum spin Hall insulator Reviewed

Akinori Nishide, Alexey A. Taskin, Yasuo Takeichi, Taichi Okuda, Akito Kakizaki, Toru Hirahara, Kan Nakatsuji, Fumio Komori, Yoichi Ando, Iwao Matsuda

PHYSICAL REVIEW B   81 ( 4 )   2010.1

Spin-Split Quantum-Well States Induced by Hybridization with Rashba-Split Surface States Reviewed

Yasuo TAKEICHI, Ke HE, Taichi OKUDA, Toru HIRAHARA, Akito KAKIZAKI, Iwao MATSUDA

Hyomen Kagaku   31 ( 9 )   493 - 499   2010

Insulating conduction in Sn/Si(111): Possibility of a Mott insulating ground state and metallization/localization induced by carrier doping Reviewed

Toru Hirahara, Taku Komorida, Yan Gu, Fumitaka Nakamura, Hiroshi Idzuchi, Harumo Morikawa, Shuji Hasegawa

PHYSICAL REVIEW B   80 ( 23 )   2009.12

Direct detection of grain boundary scattering in damascene Cu wires by nanoscale four-point probe resistance measurements Reviewed

Yusuke Kitaoka, Takeshi Tono, Shinya Yoshimoto, Toru Hirahara, Shuji Hasegawa, Takayuki Ohba

APPLIED PHYSICS LETTERS   95 ( 5 )   2009.8

Large Surface-state Conductivity in Quantum Bi Films Reviewed

Toru Hirahara, Iwao Matsuda, Shiro Yamazaki, Shuji Hasegawa

表面科学   30   374 - 379   2009.7

Conductivity of the Si(111)7x7 dangling-bond state Reviewed

Marie D'angelo, Keiko Takase, Nobuhiro Miyata, Toru Hirahara, Shuji Hasegawa, Akinori Nishide, Manami Ogawa, Iwao Matsuda

PHYSICAL REVIEW B   79 ( 3 )   2009.1

Nanometer-scale four-point probe resistance measurements of Cu wires using carbon nanotube tips

Y. Kitaoka, S. Yoshimoto, T. Hirahara, S. Hasegawa, T. Ohba

Advanced Metallization Conference (AMC)   295 - 299   2009

Electronic transport properties of quantum-well states in ultrathin Pb (111) films Reviewed

Nobuhiro Miyata, Kotaro Horikoshi, Toru Hirahara, Shuji Hasegawa, C. M. Wei, Iwao Matsuda

Physical Review B - Condensed Matter and Materials Physics   78 ( 24 )   2008.12

Electronic transport properties of quantum-well states in ultrathin Pb (111) films Reviewed

Nobuhiro Miyata, Kotaro Horikoshi, Toru Hirahara, Shuji Hasegawa, C. M. Wei, Iwao Matsuda

PHYSICAL REVIEW B   78 ( 24 )   2008.12

Band-bending inhomogeneity of Au adsorbed Si(111)-root 3 x root 3-Ag surface evaluated with Si 2p core-level spectra Reviewed

Canhua Liu, Iwao Matsuda, Toru Hirahara, Shuji Hasegawa, Jun Okabayashi, Satoshi Toyoda, Masaharu Oshima

SURFACE SCIENCE   602 ( 21 )   3316 - 3322   2008.11

Spin polarization of quantum well states in Ag films induced by the Rashba effect at the surface Reviewed

Ke He, Toru Hirahara, Taichi Okuda, Shuji Hasegawa, Akito Kakizaki, Iwao Matsuda

PHYSICAL REVIEW LETTERS   101 ( 10 )   2008.9

Origin of the surface-state band-splitting in ultrathin Bi films: from a Rashba effect to a parity effect Reviewed

T. Hirahara, K. Miyamoto, A. Kimura, Y. Niinuma, G. Bihlmayer, E. V. Chulkov, T. Nagao, I. Matsuda, S. Qiao, K. Shimada, H. Namatame, M. Taniguchi, S. Hasegawa

NEW JOURNAL OF PHYSICS   10   2008.8

Manipulating quantum-well states by surface alloying: Pb on ultrathin Ag films Reviewed

T. Hirahara, T. Komorida, A. Sato, G. Bihlmayer, E. V. Chulkov, K. He, I. Matsuda, S. Hasegawa

PHYSICAL REVIEW B   78 ( 3 )   2008.7

Quantum-size effect in uniform Ge-Sn alloy nanodots observed by photoemission Spectroscopy Reviewed

Yasuo Nakayama, Keiko Takase, Toru Hirahara, Shuji Hasegawa, Taichi Okuda, Ayumi Harasawa, Iwao Matsuda, Yoshiaki Nakamura, Masakazu Ichikawa

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS   46 ( 45-49 )   L1176 - L1178   2007.12

Large surface-state conductivity in ultrathin Bi films Reviewed

T. Hirahara, I. Matsuda, S. Yamazaki, N. Miyata, S. Hasegawa, T. Nagao

APPLIED PHYSICS LETTERS   91 ( 20 )   2007.11

Electron-phonon interaction and localization of surface-state carriers in a metallic monolayer Reviewed

Iwao Matsuda, Canhua Liu, Toru Hirahara, Masashi Ueno, Takehiro Tanikawa, Taizo Kanagawa, Rei Hobara, Shiro Yamazaki, Shuji Hasegawa

PHYSICAL REVIEW LETTERS   99 ( 14 )   2007.10

Direct observation of spin splitting in bismuth surface states Reviewed

T. Hirahara, K. Miyamoto, I. Matsuda, T. Kadono, A. Kimura, T. Nagao, G. Bihlmayer, E. V. Chulkov, S. Qiao, K. Shimada, H. Namatame, M. Taniguchi, S. Hasegawa

PHYSICAL REVIEW B   76 ( 15 )   2007.10

Electrical conduction of Ge nanodot arrays formed on an oxidized Si surface Reviewed

Yasuo Nakayama, Shiro Yamazaki, Hiroyuki Okino, Toru Hirahara, Iwao Matsuda, Shuji Hasegawa, Masakazu Ichikawa

APPLIED PHYSICS LETTERS   91 ( 12 )   2007.9

Electronic structures of the highest occupied molecular orbital bands of a pentacene ultrathin film Reviewed

Haruya Kakuta, Toru Hirahara, Iwao Matsuda, Tadaaki Nagao, Shuji Hasegawa, Nobuo Ueno, Kazuyuki Sakamoto

PHYSICAL REVIEW LETTERS   98 ( 24 )   2007.6

Quantum well states in ultrathin Bi films: Angle-resolved photoemission spectroscopy and first-principles calculations study Reviewed

T. Hirahara, T. Nagao, I. Matsuda, G. Bihlmayer, E. V. Chulkov, Yu. M. Koroteev, S. Hasegawa

PHYSICAL REVIEW B   75 ( 3 )   2007.1

Role of spin-orbit coupling and hybridization effects in the electronic structure of ultrathin Bi films Reviewed

T. Hirahara, T. Nagao, I. Matsuda, G. Bihlmayer, E. V. Chulkov, Yu. M. Koroteev, P. M. Echenique, M. Saito, S. Hasegawa

PHYSICAL REVIEW LETTERS   97 ( 14 )   2006.10

Quasi-one-dimensional quantized states in an epitaxial ag film on a one-dimensional surface superstructure Reviewed

Naoka Nagamura, Iwao Matsuda, Nobuhiro Miyata, Toru Hirahara, Shuji Hasegawa, Takashi Uchihashi

PHYSICAL REVIEW LETTERS   96 ( 25 )   2006.6

Direct measurement of the Hall effect in a free-electron-like surface state Reviewed

Toru Hirahara, Iwao Matsuda, Canhua Liu, Rei Hobara, Shinya Yoshimoto, Shuji Hasegawa

PHYSICAL REVIEW B   73 ( 23 )   2006.6

Electrical conduction through a monatomic surface step Reviewed

Matsuda, I, T Hirahara, M Ueno, R Hobara, S Hasegawa

JOURNAL DE PHYSIQUE IV   132   57 - 61   2006.3

Direct measurement of the Hall effect in a free-electron-like surface state Reviewed

Toru Hirahara, Iwao Matsuda, Canhua Liu, Rei Hobara, Shinya Yoshimoto, Shuji Hasegawa

Physical Review B - Condensed Matter and Materials Physics   73 ( 23 )   2006

Evolution of Fermi surface by electron filling into a free-electronlike surface state Reviewed

Matsuda, I, T Hirahara, M Konishi, CH Liu, H Morikawa, M D'angelo, S Hasegawa, T Okuda, T Kinoshita

PHYSICAL REVIEW B   71 ( 23 )   2005.6

Positive magnetic susceptibility in polygonal nanotube tori Reviewed

R Tamura, M Ikuta, T Hirahara, M Tsukada

PHYSICAL REVIEW B   71 ( 4 )   2005.1

Electrical resistance of a monatomic step on a crystal surface Reviewed

Matsuda, I, M Ueno, T Hirahara, R Hobara, H Morikawa, CH Liu, S Hasegawa

PHYSICAL REVIEW LETTERS   93 ( 23 )   2004.12

The effective mass of a free-electron-like surface state of the Si(111)root 3x root 3-Ag surface investigated by photoemission and scanning tunneling spectroscopies Reviewed

T Hirahara, Matsuda, I, M Ueno, S Hasegawa

SURFACE SCIENCE   563 ( 1-3 )   191 - 198   2004.8

Photoemission Structure Factor Effect for Fermi Rings of the Si(111)√3×√3-Ag Surface

Hirahara Toru, Matsuda Iwao, Hasegawa Shuji

e-J. Surf. Sci. Nanotech.   2   141 - 145   2004

Fermi-Level-Controlled Electrical Transport Properties in the Ferromagnetic Topological Insulator Sandwich Structure Mn(Bi_1-xSb_x)₂Te₄/(Bi_1-xSb_x)₂Te₃/Mn(Bi_1-xSb_x)₂Te₄/Si(111)

高城拓也, 秋山了太, KIBIREV I. A., KIBIREV I. A., MATETSKIY A. V., MATETSKIY A. V., 遠山晴子, 中西亮介, 樋渡功太, 平原徹, 深澤拓朗, ZOTOV A. V., ZOTOV A. V., SARANIN A. A., SARANIN A. A., 長谷川修司

日本物理学会講演概要集(CD-ROM)   75 ( 2 )   2020

トポロジカル絶縁体/磁性絶縁体超薄膜ヘテロ接合 II:磁化特性

中西亮介, 秋山了太, 奥山裕磨, 高木康多, EREMEEV S. V., CHULKOV E. V., 横山利彦, 長谷川修司, 平原徹

日本物理学会講演概要集(CD-ROM)   72 ( 1 )   2017

Spin-Dependent Ion Scattering on Bismuth Surfaces Invited

Satoru ICHINOKURA, Toru HIRAHARA, Osamu SAKAI, Shuji HASEGAWA, Taku SUZUKI

Surface acience   36   408 - 411   2015

可視光レーザーを用いた表面ラシュバ系における光誘起電圧の円二色性:Bi表面およびBi吸着Ag表面

石原大嵩, 福居直哉, 保原麗, 高山あかり, 秋山了太, 平原徹, 長谷川修司

日本物理学会講演概要集(CD-ROM)   70 ( 2 )   2015

トポロジカル絶縁体Bi₂Te₃超薄膜へのPbドープによるフェルミ準位制御と電気伝導度測定

相谷昌紀, 平原徹, 坂本裕介, 山田学, 宮崎秀俊, 木村真一, 長谷川修司

表面科学学術講演会講演要旨集   31st   28   2011.12

BiSb合金超薄膜上のトポロジカル金属

坂本裕介, 平原徹, 最首祐樹, 宮崎秀俊, 木村真一, 奥田太一, 奥田太一, 松田巌, 村上修一, 村上修一, 長谷川修司

表面科学学術講演会講演要旨集   29th ( 0 )   211 - 213   2009.10

STM observation of the Si(1 1 1)-c(12×2)-Ag surface

Nobuhiro Miyata, Iwao Matsuda, Marie D'Angelo, Harumo Morikawa, Toru Hirahara, Shuji Hasegawa

e-Journal of Surface Science and Nanotechnology   3   151 - 155   2005.5

強磁性二次元ファンデルワールス原子層物質の新奇な磁化特性の解明と制御

2018 - 2021

基盤研究(A) 

平原 徹

Scanning tunneling potentiometry measurements on surface/ultrathin superconductors

Grant number：16K13683  2016.4 - 2017.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

Hirahara Toru, YOSHINO Ryo, TANAKA Tomoaki

表面・極薄超伝導体の走査トンネルポテンショメトリ測定

2016

挑戦的萌芽研究 

平原 徹

Elucidating the peculiar properties of inversion-symmetry-broken surface superconductors with scanning tunneling microscopy

Grant number：15H05453  2015.4 - 2018.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (A)  Grant-in-Aid for Young Scientists (A)

Hirahara Toru, TANAKA Tomoaki, YOSHINO Ryo, AKIYAMA Kenta

Development of pure spin injection probe using multiprobe STM

Grant number：15K13358  2015.4 - 2017.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

Hobara Rei, HIRAHARA TORU

Study of Electron/Spin Transport at Molecules by Functionalized Four-Tip STM

Grant number：25110010  2013.6 - 2018.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Hasegawa Shuji, HOBARA Rei

Development of a high-resolution surface magnetic optical Kerr effect measurements system and its application to spin transport measurements in surface Rashba systems

Grant number：25600093  2013.4 - 2016.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

Hirahara Toru

Studies on Electronic and Spin Transport at Topological Surfaces and Edge States

Grant number：25246025  2013.4 - 2016.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)  Grant-in-Aid for Scientific Research (A)

Hasegawa Shuji, TAKAYAMA Akari, AKIYAMA Ryota, HIRAHARA Toru, Saranin Alexander, HOBARA Rei

Development of a spin-polarized scanning tunneling potentiometry system and its application to micro fabricated surface Rashba systems

Grant number：23686007  2011.4 - 2014.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (A)  Grant-in-Aid for Young Scientists (A)

HIRAHARA Toru

Development of a spin-polarized probe for nanoscale transport measurements and its application to spin transport of surface Rashba systems

Grant number：22656011  2010 - 2012

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research  Grant-in-Aid for Challenging Exploratory Research

HIRAHARA Toru, HASEGAWA Shuji

Development of Milli-Kelvin Micro-Four-Point Probe Method andResearch of Monolayer Superconductors

Grant number：22246006  2010 - 2012

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)  Grant-in-Aid for Scientific Research (A)

HASEGAWA Shuji, HIRAHARA Toru

Diluted magnetic surface states on semiconductor crystals and its application to spintronics

Grant number：19206006  2007 - 2009

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)  Grant-in-Aid for Scientific Research (A)

HASEGAWA Shuji, HIRAHARA Toru

金属単原子層と超薄膜内2次元電子系の電子状態と磁気輸送

Grant number：05J11823  2005 - 2006

日本学術振興会  科学研究費助成事業 特別研究員奨励費  特別研究員奨励費

平原 徹