Kyoto University   Department of Materials Science and Engineering   Research Fellowship for Young Scientists of Japan Society for the Promotion of Science

2009.4 - 2013.3

Kyoto University   Department of Material Chemistry   Research Fellowship for Young Scientists of Japan Society for the Promotion of Science

2008.4 - 2009.3

Local and Global Structural Effects of Doping on Ionic Conductivity in the Na3SbS4 Solid Electrolyte

Cheng-Wei Lee, Mayu Maegawa, Hirofumi Akamatsu, Katsuro Hayashi, Saneyuki Ohno, Prashun Gorai

ACS Materials Letters   2025.2

Thermally Controlled A-site Cation Ordering and Coupled Polarity in Double Perovskite NaLaZr2O6

Jian Wang, Hirofumi Akamatsu, Yang Zhang, Tatsushi Kawasaki, Saneyuki Ohno, Koji Fujita, Katsuro Hayashi

Inorganic Chemistry   2025.1

Compatibility of Halide Electrolytes in Solid-State Li–S Battery Cathodes

Shoma Yanagihara, Jan Huebner, Zheng Huang, Atsushi Inoishi, Hirofumi Akamatsu, Katsuro Hayashi, Saneyuki Ohno

Chemistry of Materials   2025.1

Sodium ion conduction in perovskite-type sodium lanthanum niobate ceramics

Jian Wang, Hirofumi Akamatsu, Katsuro Hayashi

Journal of Alloys and Compounds   1010   177335 - 177335   2025.1

Bifunctional Al Dopant for Enhancing Bulk and Grain Boundary Conductivities in Sodium Ion Conducting NASICON Ceramics

Bowei Xun, Jian Wang, Yukio Sato, Shufan Jia, Saneyuki Ohno, Hirofumi Akamatsu, Katsuro Hayashi

Advanced Energy Materials   2025.1

High-conductivity, low-temperature sintering-compatible NASICON solid electrolyte for enhanced compositing with hard carbon electrode in all-solid-state batteries

Bowei Xun, Jian Wang, Yukio Sato, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

Journal of Materials Chemistry A   2025

Structural frustration effects by mixed alkali ions in ferroelectric Dion–Jacobson layered perovskites (Cs,Rb)NdNb2O7

Zhen-Tao Lu, Sota Asaki, Suguru Yoshida, Chikako Moriyoshi, George Hasegawa, Koji Fujita, Venkatraman Gopalan, Katsuro Hayashi, Hirofumi Akamatsu

Journal of Materials Chemistry C   2025

Suppression of Ferroelectric Transitions by Symmetry Trapping in Dion–Jacobson-Layered Perovskites Cs(La,Nd)Nb2O7

Zhen-Tao Lu, Kai Nishioka, Yang Zhang, Koji Fujita, Katsuro Hayashi, Hirofumi Akamatsu

Inorganic Chemistry   2024.12

First-principles prediction of ferroelectricity in defective wurtzite α-Ga2S3

Yuto Shimomura, Katsuro Hayashi, Hirofumi Akamatsu

Japanese Journal of Applied Physics   2024.8

NaMCl6 (M = Nb and Ta): A New Class of Sodium-Conducting Halide-Based Solid Electrolytes

Zheng Huang, Suguru Yoshida, Hirofumi Akamatsu, Katsuro Hayashi, Saneyuki Ohno

ACS Materials Letters   2024.5

La2SrSc2O7: A-Site Cation Disorder Induces Ferroelectricity in Ruddlesden–Popper Layered Perovskite Oxide

Wei Yi, Tatsushi Kawasaki, Yang Zhang, Hirofumi Akamatsu, Ryo Ota, Shuki Torii, Koji Fujita

Journal of the American Chemical Society   2024.2

Hydrogarnet-Derived Porous Polyhedral Particles of SrFeO_3-δ Perovskite

Hikaru Otaguro, Tomoki Takeno, Ryosuke Sugimoto, Saburo Hosokawa, Hirofumi Akamatsu, Takahisa Yamamoto, Kazuki Nakanishi, Katsuro Hayashi, George Hasegawa

Chemistry of Materials   35 ( 16 )   6423 - 6436   2023.8

Enhanced Electrochemical and Transportation Properties in a NASICON-Type Na₃Zr₂(SiO₄)₂(PO₄)–Na₃Ti₂(PO₄)₃ Junction Prepared by Spin Coating and Glass-Ceramic Processes

Shufan Jia, Saneyuki Ohno, Jian Wang, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

ACS Applied Energy Materials   2022.12

Topochemical Synthesis of LiCoF₃ with a High-Temperature LiNbO₃-Type Structure

Yumi Matsuo, Yuko Matsukawa, Masahiro Kitakado, George Hasegawa, Suguru Yoshida, Ryoto Kubonaka, Yuya Yoshida, Tatsushi Kawasaki, Eiichi Kobayashi, Chikako Moriyoshi, Saneyuki Ohno, Koji Fujita, Katsuro Hayashi, Hirofumi Akamatsu

Inorganic Chemistry   61 ( 30 )   11746 - 11756   2022.8

Interplay between Oxygen Octahedral Rotation and Deformation in the Acentric ARTiO4 Series toward Negative Thermal Expansion

Suguru Yoshida, Hirofumi Akamatsu, Alexandra S. Gibbs, Shogo Kawaguchi, Venkatraman Gopalan, Katsuhisa Tanaka, Koji Fujita

Chemistry of Materials   34 ( 14 )   6492 - 6504   2022.7

Controlling Defects to Achieve Reproducibly High Ionic Conductivity in Na₃SbS₄ Solid Electrolytes

Masaki Shimoda, Mayu Maegawa, Suguru Yoshida, Hirofumi Akamatsu, Katsuro Hayashi, Prashun Gorai, Saneyuki Ohno

Chemistry of Materials   2022.6

Mechanical and thermal properties of porous polyimide monoliths crosslinked with aromatic and aliphatic triamines

Mitsuhiro Ishida, Yutaro Sashiyama, Hirofumi Akamatsu, Katsuro Hayashi, Kazuki Nakanishi, George Hasegawa

Journal of Sol-Gel Science and Technology   2022.5

Glass-ceramic route to NASICON-type Na Ti2(PO4)3 electrodes for Na-ion batteries

Shufan Jia, Hirofumi Akamatsu, George Hasegawa, Saneyuki Ohno, Katsuro Hayashi

Ceramics International   48 ( 17 )   24758 - 24764   2022.5

Synthesis of Hydride-Doped Perovskite Stannate with Visible Light Absorption Capability Reviewed

Masashi Nakamura, Hirofumi Akamatsu, Kotaro Fujii, Yusuke Nambu, Yoichi Ikeda, Tomoki Kanazawa, Shunsuke Nozawa, Masatomo Yashima, Katsuro Hayashi, Kazuhiko Maeda

Inorganic Chemistry   61 ( 17 )   6584 - 6593   2022.4

Electronic Origin of Non-Zone-Center Phonon Condensation: Octahedral Rotation as a Case Study

Suguru Yoshida, Hirofumi Akamatsu, Katsuro Hayashi

Physical Review Letters   127 ( 21 )   2021.11

Environmental impact of amino acids on selenate-bearing hydrocalumite: Experimental and DFT studies

Mengmeng Wang, Hirofumi Akamatsu, Ismaila Dabo, Keiko Sasaki

Environmental Pollution   288   117687 - 117687   2021.11

Influence of Amino Acids on the Mobility of Iodide in Hydrocalumite

Mengmeng Wang, Hirofumi Akamatsu, Keiko Sasaki

Minerals   11 ( 8 )   836 - 836   2021.8

Environmental impact of amino acids on the release of selenate immobilized in hydrotalcite: Integrated interpretation of experimental and density-functional theory study

Mengmeng Wang, Hirofumi Akamatsu, Ismaila Dabo, Keiko Sasaki

Chemosphere   274   129927 - 129927   2021.7

Sn-Based Perovskite with a Wide Visible-Light Absorption Band Assisted by Hydride Doping

Masashi Nakamura, Hiroshi Watanabe, Hirofumi Akamatsu, Kotaro Fujii, Masatomo Yashima, George Hasegawa, Miki Inada, Katsuro Hayashi, Kazuhiko Maeda

CHEMISTRY OF MATERIALS   33 ( 10 )   3631 - 3638   2021.5

Ferroelectricity of Dion-Jacobsen layered perovskites CsNdNb(2)O(7)and RbNdNb2O7 Reviewed

Sota Asaki, Hirofumi Akamatsu, George Hasegawa, Tomohiro Abe, Yuki Nakahira, Suguru Yoshida, Chikako Moriyoshi, Katsuro Hayashi

JAPANESE JOURNAL OF APPLIED PHYSICS   59 ( SP )   2020.11

Antiferroelectricity and robust dielectric response owing to competing polar and antipolar instabilities in tetragonal tungsten bronze K2RNb5O15 ( R : rare-earth)

Tomoki Murata, Hirofumi Akamatsu, Daisuke Hirai, Fumiyasu Oba, Sakyo Hirose

Physical Review Materials   4 ( 10 )   2020.10

Variation of meso- and macroporous morphologies in resorcinol-formaldehyde (RF) gels tailored via a sol-gel process combined with soft-templating and phase separation Reviewed

George Hasegawa, Takaya Yano, Hirofumi Akamatsu, Katsuro Hayashi, Kazuki Nakanishi

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY   95 ( 3 )   801 - 812   2020.9

Reversible Electrochemical Insertion/Extraction of Magnesium Ion into/from Robust NASICON-Type Crystal Lattice in a Mg(BF4)(2)-Based Electrolyte Reviewed

George Hasegawa, Yuto Akiyama, Moeko Tanaka, Ryo Ishikawa, Hirofumi Akamatsu, Yuichi Ikuhara, Katsuro Hayashi

ACS APPLIED ENERGY MATERIALS   3 ( 7 )   6824 - 6833   2020.7

Competing Polar and Antipolar Structures in the Ruddlesden-Popper Layered Perovskite Li2SrNb2O7 Reviewed

Ritesh Uppuluri, Hirofumi Akamatsu, Arnab Sen Gupta, Huaiyu Wang, Craig M. Brown, Kleyser E. Agueda Lopez, Nasim Alem, Venkatraman Gopalan, Thomas E. Mallouk

CHEMISTRY OF MATERIALS   31 ( 12 )   4418 - 4425   2019.6

Comprehensive magnetic phase diagrams of the polar metal Ca-3(Ru0.95Fe0.05)(2)O-7 Reviewed

Shiming Lei, Shalinee Chikara, Danilo Puggioni, Jin Peng, Mengze Zhu, Mingqiang Gu, Weiwei Zhao, Yu Wang, Yakun Yuan, Hirofumi Akamatsu, Moses H. W. Chan, Xianglin Ke, Zhiqiang Mao, James M. Rondinelli, Marcelo Jaime, John Singleton, Franziska Weickert, Vivien S. Zapf, Venkatraman Gopalan

PHYSICAL REVIEW B   99 ( 22 )   2019.6

A-site cation size effect on oxygen octahedral rotations in acentric Ruddlesden-Popper alkali rare-earth titanates Reviewed

Hirofumi Akamatsu, Koji Fujita, Toshihiro Kuge, Arnab Sen Gupta, James M. Rondinelli, Isao Tanaka, Katsuhisa Tanaka, Venkatraman Gopalan

PHYSICAL REVIEW MATERIALS   3 ( 6 )   2019.6

A highly conductive Na3V2(PO4)(3) ceramic sheet prepared by tape-casting method Reviewed

He Wang, George Hasegawa, Yuto Akiyama, Takahisa Yamamoto, Atsushi Inoishi, Hirofumi Akamatsu, Miki Inada, Tatsumi Ishihara, Katsuro Hayashi

ELECTROCHIMICA ACTA   305   197 - 203   2019.5

Insights into Sodium Ion Transfer at the Na/NASICON Interface Improved by Uniaxial Compression Reviewed

Yasuhiro Uchida, George Hasegawa, Kazunari Shima, Miki Inada, Naoya Enomoto, Hirofumi Akamatsu, Katsuro Hayashi

ACS APPLIED ENERGY MATERIALS   2 ( 4 )   2913 - 2920   2019.4

Structural dynamics of LaVO3 on the nanosecond time scale Reviewed

Matthew Brahlek, Vladimir A. Stoica, Jason Lapano, Lei Zhang, Hirofumi Akamatsu, I-Cheng Tung, Venkatraman Gopalan, Donald A. Walko, Haidan Wen, John W. Freeland, Roman Engel-Herbert

STRUCTURAL DYNAMICS-US   6 ( 1 )   2019.1

Emergent room temperature polar phase in CaTiO3 nanoparticles and single crystals Reviewed

Mariola O. Ramirez, Tom T. A. Lummen, Irene Carrasco, Eftihia Barnes, Ulrich Aschauer, Dagmara Stefanska, Arnab Sen Gupta, Carmen de las Heras, Hirofumi Akamatsu, Martin Holt, Pablo Molina, Andrew Barnes, Ryan C. Haislmaier, Przemyslaw J. Deren, Carlos Prieto, Luisa E. Bausa, Nicola A. Spaldin, Venkatraman Gopalan

APL MATERIALS   7 ( 1 )   2019.1

Sodium titanium oxide bronze nanoparticles synthesized via concurrent reduction and Na+-doping into TiO2(B) Reviewed

George Hasegawa, Moeko Tanaka, Junie Jhon M. Vequizo, Akira Yamakata, Hajime Hojo, Makoto Kobayashi, Masato Kakihana, Miki Inada, Hirofumi Akamatsu, Katsuro Hayashi

NANOSCALE   11 ( 3 )   1442 - 1450   2019.1

Strain-engineered Peierls instability in layered perovskite La3Ni2O7 from first principles Reviewed

Yasuhide Mochizuki, Hirofumi Akamatsu, Yu Kumagai, Fumiyasu Oba

PHYSICAL REVIEW MATERIALS   2 ( 12 )   2018.12

Polar metallic behavior of strained antiperovskites ACNi(3) (A = Mg, Zn, and Cd) from first principles Reviewed

Yasuhide Mochizuki, Yu Kumagai, Hirofumi Akamatsu, Fumiyasu Oba

PHYSICAL REVIEW MATERIALS   2 ( 12 )   2018.12

Hybrid Improper Ferroelectricity in (Sr,Ca)(3)Sn2O7 and Beyond: Universal Relationship between Ferroelectric Transition Temperature and Tolerance Factor in n=2 Ruddlesden-Popper Phases Reviewed

Suguru Yoshida, Hirofumi Akamatsu, Ryosuke Tsuji, Olivier Hernandez, Haricharan Padmanabhan, Arnab Sen Gupta, Alexandra S. Gibbs, Ko Mibu, Shunsuke Murai, James M. Rondinelli, Venkatraman Gopalan, Katsuhisa Tanaka, Koji Fujita

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   140 ( 46 )   15690 - 15700   2018.11

Discovering minimum energy pathways via distortion symmetry groups Reviewed

Jason M. Munro, Hirofumi Akamatsu, Haricharan Padmanabhan, Vincent S. Liu, Yin Shi, Long-Qing Chen, Brian K. VanLeeuwen, Ismaila Dabo, Venkatraman Gopalan

PHYSICAL REVIEW B   98 ( 8 )   2018.8

Ferroelectric Sr3Zr2O7: Competition between Hybrid Improper Ferroelectric and Antiferroelectric Mechanisms Reviewed

Suguru Yoshida, Koji Fujita, Hirofumi Akamatsu, Olivier Hernandez, Arnab Sen Gupta, Forrest G. Brown, Haricharan Padmanabhan, Alexandra S. Gibbs, Toshihiro Kuge, Ryosuke Tsuji, Shunsuke Murai, James M. Rondinelli, Venkatraman Gopalan, Katsuhisa Tanaka

ADVANCED FUNCTIONAL MATERIALS   28 ( 30 )   2018.7

Artificial two-dimensional polar metal at room temperature Reviewed

Yanwei Cao, Zhen Wang, Se Young Park, Yakun Yuan, Xiaoran Liu, Sergey M. Nikitin, Hirofumi Akamatsu, M. Kareev, S. Middey, D. Meyers, P. Thompson, P. J. Ryan, Padraic Shafer, A. N'Diaye, E. Arenholz, Venkatraman Gopalan, Yimei Zhu, Karin M. Rabe, J. Chakhalian

NATURE COMMUNICATIONS   9   2018.4

Light-Activated Gigahertz Ferroelectric Domain Dynamics Reviewed

Hirofumi Akamatsu, Yakun Yuan, Vladimir A. Stoica, Greg Stone, Tiannan Yang, Zijian Hong, Shiming Lei, Yi Zhu, Ryan C. Haislmaier, John W. Freeland, Long-Qing Chen, Haidan Wen, Venkatraman Gopalan

PHYSICAL REVIEW LETTERS   120 ( 9 )   2018.2

Random anion distribution in MSxSe2-x(M = Mo, W) crystals and nanosheets Reviewed

Minh An T. Nguyen, Arnab Sen Gupta, Jacob Shevrin, Hirofumi Akamatsu, Pengtao Xu, Zhong Lin, Ke Wang, Jun Zhu, Venkatraman Gopalan, Mauricio Terrones, Thomas E. Mallouk

RSC ADVANCES   8 ( 18 )   9871 - 9878   2018

Perovskite-Type InCoO3 with Low-Spin Co3+: Effect of In-O Covalency on Structural Stabilization in Comparison with Rare-Earth Series Reviewed

Koji Fujita, Takahiro Kawamoto, Ikuya Yamada, Olivier Hernandez, Hirofumi Akamatsu, Yu Kumagai, Fumiyasu Oba, Pascal Manuel, Ryo Fujikawa, Suguru Yoshida, Masayuki Fukuda, Katsuhisa Tanaka

INORGANIC CHEMISTRY   56 ( 18 )   11113 - 11122   2017.9

Carrier-Induced Band-Gap Variation and Point Defects in Zn3N2 from First Principles Reviewed

Yu Kumagai, Kou Harada, Hirofumi Akamatsu, Kosuke Matsuzaki, Fumiyasu Oba

PHYSICAL REVIEW APPLIED   8 ( 1 )   014015   2017.7

Competing Structural Instabilities in the Ruddlesden Popper Derivatives HRTiO4 (R = Rare Earths): Oxygen Octahedral Rotations Inducing Noncentrosymmetricity and Layer Sliding Retaining Centrosymmetricity Reviewed

Arnab Sen Gupta, Hirofumi Akamatsu, Forrest G. Brown, Minh An T. Nguyen, Megan E. Strayer, Saul Lapidus, Suguru Yoshida, Koji Fujita, Katsuhisa Tanaka, Isao Tanaka, Thomas E. Mallouk, Venkatrarnan Gopalan

CHEMISTRY OF MATERIALS   29 ( 2 )   656 - 665   2017.1

LiNbO3-Type InFeO3: Room-Temperature Polar Magnet without Second-Order Jahn-Teller Active Ions Reviewed

Koji Fujita, Takahiro Kawamoto, Ikuya Yamada, Olivier Hernandez, Naoaki Hayashi, Hirofumi Akamatsu, William Lafargue-Dit-Hauret, Xavier Rocquefelte, Masafumi Fukuzumi, Pascal Manuel, Andrew J. Studer, Christopher S. Knee, Katsuhisa Tanaka

CHEMISTRY OF MATERIALS   28 ( 18 )   6644 - 6655   2016.9

Synthesis and characterizations of MoSxSe2-x and WSxSe2-x solid solutions Reviewed

Minh An Nguyen, Arnab Sen Gupta, Jacob Shervin, Hirofumi Akamatsu, Ana Laura Elias, Mauricio Terrones, Jun Zhu, Venkatraman Gopalan, Thomas Mallouk

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   252   2016.8

Low‐Temperature Cationic Rearrangement in a Bulk Metal Oxide Reviewed International journal

Man‐Rong Li, Maria Retuerto, Peter W Stephens, Mark Croft, Denis Sheptyakov, Vladimir Pomjakushin, Zheng Deng, Hirofumi Akamatsu, Venkatraman Gopalan, Javier Sánchez‐Benítez, Felix O Saouma, Joon I Jang, David Walker, Martha Greenblatt

Angewandte Chemie   128 ( 34 )   10016 - 10021   2016.8

Low-Temperature Cationic Rearrangement in a Bulk Metal Oxide Reviewed

Man-Rong Li, Maria Retuerto, Peter W. Stephens, Mark Croft, Denis Sheptyakov, Vladimir Pomjakushin, Zheng Deng, Hirofumi Akamatsu, Venkatraman Gopalan, Javier Sanchez-Benitez, Felix O. Saouma, Joon I. Jang, David Walker, Martha Greenblatt

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   55 ( 34 )   9862 - 9867   2016.8

Noncentrosymmetry induced by oxygen octahedral rotations competing with octahedral sliding in Ruddlesden-Popper phases, HRTiO4 (R = rare earths) Reviewed

Arnab Sen Gupta, Hirofumi Akamatsu, Forrest Brown, Megan Strayer, Minh An Nguyen, Thomas Mallouk, Venkatraman Gopalan

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   252   2016.8

Structural phase transitions in EuNbO3 perovskite Reviewed

Yoshiro Kususe, Suguru Yoshida, Koji Fujita, Hirofumi Akamatsu, Masafumi Fukuzumi, Shunsuke Murai, Katsuhisa Tanaka

JOURNAL OF SOLID STATE CHEMISTRY   239   192 - 199   2016.7

Competing broken inversion symmetry and oxygen octahedral sliding phenomena in n=1 Ruddlesden popper derivative HRTiO4 (R=Nd, Sm, Eu, Gd, and Dy) family Reviewed

Forrest Brown, Arnab Sen Gupta, Hirofumi Akamatsu, Minh An Nguyen, Thomas Mallouk, Venkatraman Gopalan

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   251   2016.3

Emergent Noncentrosymmetry and Piezoelectricity Driven by Oxygen Octahedral Rotations in n=2 Dion-Jacobson Phase Layer Perovskites Reviewed

Megan E. Strayer, Arnab Sen Gupta, Hirofumi Akamatsu, Shiming Lei, Nicole A. Benedek, Venkatraman Gopalan, Thomas E. Mallouk

ADVANCED FUNCTIONAL MATERIALS   26 ( 12 )   1930 - 1937   2016.3

PbMn(IV)TeO6: A New Noncentrosymmetric Layered Honeycomb Magnetic Oxide Reviewed

Sun Woo Kim, Zheng Deng, Man-Rong Li, Arnab Sen Gupta, Hirofumi Akamatsu, Venkatraman Gopalan, Martha Greenblatt

INORGANIC CHEMISTRY   55 ( 3 )   1333 - 1338   2016.2

Improper Inversion Symmetry Breaking and Piezoelectricity through Oxygen Octahedral Rotations in Layered Perovskite Family, LiRTiO4 (R = Rare Earths) Reviewed

Arnab Sen Gupta, Hirofumi Akamatsu, Megan E. Strayer, Shiming Lei, Toshihiro Kuge, Koji Fujita, Clarina dela Cruz, Atsushi Togo, Isao Tanaka, Katsuhisa Tanaka, Thomas E. Mallouk, Venkatraman Gopalan

ADVANCED ELECTRONIC MATERIALS   2 ( 1 )   2016.1

A labile hydride strategy for the synthesis of heavily nitridized BaTiO3 Reviewed

Takeshi Yajima, Fumitaka Takeiri, Kohei Aidzu, Hirofumi Akamatsu, Koji Fujita, Wataru Yoshimune, Masatoshi Ohkura, Shiming Lei, Venkatraman Gopalan, Katsuhisa Tanaka, Craig M. Brown, Mark A. Green, Takafumi Yamamoto, Yoji Kobayashi, Hiroshi Kageyama

NATURE CHEMISTRY   7 ( 12 )   1017 - 1023   2015.12

New polar and magnetic corundum - type oxides, A2BB ' O6:High pressure synthesis Reviewed

Martha Greenblatt, Manrong Li, Maria Retuerto, Zheng Deng, Mark Croft, David Vanderbilt, Meng Ye, Peter Stephens, Joke Hadermann, David Walker, Joachim Hemberger, Christoph Grams, Chang-Qing Jin, Wen-Min Li, Joon Jang, Felix Saouma, Venkatraman Gopalan, Hirofumi Akamatsu

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   250   2015.8

Mn2FeWO6: A New Ni3TeO6-Type Polar and Magnetic Oxide Reviewed

Man-Rong Li, Mark Croft, Peter W. Stephens, Meng Ye, David Vanderbilt, Maria Retuerto, Zheng Deng, Christoph P. Grams, Joachim Hemberger, Joke Hadermann, Wen-Min Li, Chang-Qing Jin, Felix O. Saouma, Joon I. Jang, Hirofumi Akamatsu, Venkatraman Gopalan, David Walker, Martha Greenblatt

ADVANCED MATERIALS   27 ( 13 )   2177 - +   2015.4

新規圧電体NaRTiO₄(Rは希土類) : 非鉛系圧電材料開発への新しいアプローチ (特集 超音波を使用した環境保全の探求)

田中 勝久, 藤田 晃司, 赤松 寛文

超音波techno   27 ( 1 )   5 - 9   2015.1

Room-Temperature Polar Ferromagnet ScFeO3 Transformed from a High-Pressure Orthorhombic Perovskite Phase Reviewed

Takahiro Kawamoto, Koji Fujita, Ikuya Yamada, Tomohiko Matoba, Sung Joo Kim, Peng Gao, Xiaoqing Pan, Scott D. Findlay, Cedric Tassel, Hiroshi Kageyama, Andrew J. Studer, James Hester, Tetsuo Irifune, Hirofumi Akamatsu, Katsuhisa Tanaka

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   136 ( 43 )   15291 - 15299   2014.10

Superspin glass behavior of amorphous FeO-SiO2 thin films Reviewed

Yuko Nakatsuka, Hirofumi Akamatsu, Shunsuke Murai, Koji Fujita, Katsuhisa Tanaka

JAPANESE JOURNAL OF APPLIED PHYSICS   53 ( 5 )   2014.5

Inversion Symmetry Breaking by Oxygen Octahedral Rotations in the Ruddlesden-Popper NaRTiO4 Family Reviewed

Hirofumi Akamatsu, Koji Fujita, Toshihiro Kuge, Arnab Sen Gupta, Atsushi Togo, Shiming Lei, Fei Xue, Greg Stone, James M. Rondinelli, Long-Qing Chen, Isao Tanaka, Venkatraman Gopalan, Katsuhisa Tanaka

PHYSICAL REVIEW LETTERS   112 ( 18 )   2014.5

AgCu3V4O12: a Novel Perovskite Containing Mixed-Valence Silver ions Reviewed

Yasuhide Akizuki, Ikuya Yamada, Koji Fujita, Hirofumi Akamatsu, Tetsuo Irifune, Katsuhisa Tanaka

INORGANIC CHEMISTRY   52 ( 24 )   13824 - 13826   2013.12

Magneto-optical properties of Eu2+-containing aluminoborosilicate glasses with ferromagnetic interactions Reviewed

Hirofumi Akamatsu, Koji Fujita, Yuko Nakatsuka, Shunsuke Mural, Katsuhisa Tanaka

OPTICAL MATERIALS   35 ( 11 )   1997 - 2000   2013.9

Ferromagnetic amorphous oxides in the EuO-TiO2 system studied by the Faraday effect in the visible region and the x-ray magnetic circular dichroism at the Eu M-4,M-5 and L-2,L-3 edges Reviewed

Takahiro Kawamoto, Koji Fujita, Hirofumi Akamatsu, Tetsuya Nakamura, Toyohiko Kinoshita, Masaichiro Mizumaki, Naomi Kawamura, Motohiro Suzuki, Yoshiro Kususe, Shunsuke Murai, Katsuhisa Tanaka

PHYSICAL REVIEW B   88 ( 2 )   2013.7

Ferromagnetism induced by lattice volume expansion and amorphization in EuTiO3 thin films Reviewed

Katsuhisa Tanaka, Koji Fujita, Yuya Maruyama, Yoshiro Kususe, Hideo Murakami, Hirofumi Akamatsu, Yanhua Zong, Shunsuke Murai

JOURNAL OF MATERIALS RESEARCH   28 ( 8 )   1031 - 1041   2013.4

Strong Spin-Lattice Coupling Through Oxygen Octahedral Rotation in Divalent Europium Perovskites Reviewed

Hirofumi Akamatsu, Yu Kumagai, Fumiyasu Oba, Koji Fujita, Katsuhisa Tanaka, Isao Tanaka

ADVANCED FUNCTIONAL MATERIALS   23 ( 15 )   1864 - 1872   2013.4

Magnetic and magneto-optical quenching in (Mn2+, Sr2+) metaphosphate glasses Reviewed

A. Winterstein, H. Akamatsu, D. Möncke, K. Tanaka, M. A. Schmidt, L. Wondraczek

Optical Materials Express   3 ( 2 )   184 - 193   2013

Crystal and Electronic Structure and Magnetic Properties of Divalent Europium Perovskite Oxides EuMO3 (M = Ti, Zr, and Hf): Experimental and First-Principles Approaches Reviewed

Hirofumi Akamatsu, Koji Fujita, Hiroyuki Hayashi, Takahiro Kawamoto, Yu Kumagai, Yanhua Zong, Koji Iwata, Fumiyasu Oba, Isao Tanaka, Katsuhisa Tanaka

INORGANIC CHEMISTRY   51 ( 8 )   4560 - 4567   2012.4

Local Structure of Amorphous EuO-TiO2 Thin Films Probed by X-Ray Absorption Fine Structure Reviewed

Yanhua Zong, Koji Fujita, Hirofumi Akamatsu, Seisuke Nakashima, Shunsuke Murai, Katsuhisa Tanaka

JOURNAL OF THE AMERICAN CERAMIC SOCIETY   95 ( 2 )   716 - 720   2012.2

Magnetic properties of oxide glasses containing iron and rare-earth ions Reviewed

Hirofumi Akamatsu, Jun Kawabata, Koji Fujita, Shunsuke Murai, Katsuhisa Tanaka

PHYSICAL REVIEW B   84 ( 14 )   2011.10

Antiferromagnetic superexchange via 3d states of titanium in EuTiO3 as seen from hybrid Hartree-Fock density functional calculations Reviewed

Hirofumi Akamatsu, Yu Kumagai, Fumiyasu Oba, Koji Fujita, Hideo Murakami, Katsuhisa Tanaka, Isao Tanaka

PHYSICAL REVIEW B   83 ( 21 )   2011.6

Ferromagnetic properties with reentrant spin-glass behavior in amorphous EuZrO3 thin film Reviewed

Yanhua Zong, Koji Fujita, Hirofumi Akamatsu, Shunsuke Murai, Katsuhisa Tanaka

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 11-12   8 ( 11-12 )   2011

Impact of amorphization on the magnetic properties of EuO-TiO2 system Reviewed

Hirofumi Akamatsu, Koji Fujita, Yanhua Zong, Naohiro Takemoto, Shunsuke Murai, Katsuhisa Tanaka

Physical Review B - Condensed Matter and Materials Physics   82 ( 22 )   2010.12

Impact of amorphization on the magnetic properties of EuO-TiO2 system Reviewed

Hirofumi Akamatsu, Koji Fujita, Yanhua Zong, Naohiro Takemoto, Shunsuke Murai, Katsuhisa Tanaka

PHYSICAL REVIEW B   82 ( 22 )   2010.12

Preparation and magnetic properties of amorphous EuTiO3 thin films Reviewed

Yanhua Zong, Kazuma Kugimiya, Koji Fujita, Hirofumi Akamatsu, Kazuyuki Hirao, Katsuhisa Tanaka

JOURNAL OF NON-CRYSTALLINE SOLIDS   356 ( 44-49 )   2389 - 2392   2010.10

Antiferromagnetism of perovskite EuZrO3 Reviewed

Yanhua Zong, Koji Fujita, Hirofumi Akamatsu, Shunsuke Murai, Katsuhisa Tanaka

JOURNAL OF SOLID STATE CHEMISTRY   183 ( 1 )   168 - 172   2010.1

Ferromagnetic Eu2+-based oxide glasses with reentrant spin glass behavior Reviewed

Hirofumi Akamatsu, Koji Fujita, Shunsuke Murai, Katsuhisa Tanaka

PHYSICAL REVIEW B   81 ( 1 )   2010.1

Magnetic properties of mixed-valence iron phosphate glasses Reviewed

Hirofumi Akamatsu, Satoshi Oku, Koji Fujita, Shunsuke Murai, Katsuhisa Tanaka

PHYSICAL REVIEW B   80 ( 13 )   2009.10

Structural characterization of hierarchically porous alumina aerogel and xerogel monoliths Reviewed

Yasuaki Tokudome, Kazuki Nakanishi, Kazuyoshi Kanamori, Koji Fujita, Hirofumi Akamatsu, Teiichi Hanada

JOURNAL OF COLLOID AND INTERFACE SCIENCE   338 ( 2 )   506 - 513   2009.10

Structural and Magnetic Properties of CdFe2O4 Thin Films Fabricated via Sputtering Method Reviewed

Hirofumi Akamatsu, Yanhua Zong, Yosefu Fujiki, Kazuaki Kamiya, Koji Fujita, Shunsuke Murai, Katsuhisa Tanaka

IEEE TRANSACTIONS ON MAGNETICS   44 ( 11 )   2796 - 2799   2008.11

Magneto-optical properties of transparent divalent iron phosphate glasses Reviewed

Hirofumi Akamatsu, Koji Fujita, Shunsuke Murai, Katsuhisa Tanaka

APPLIED PHYSICS LETTERS   92 ( 25 )   2008.6

Magnetic phase transitions in Fe2O3-Bi2O3-B2O3 glasses Reviewed

Hirofumi Akamatsu, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai

JOURNAL OF PHYSICS-CONDENSED MATTER   20 ( 23 )   2008.6

Magnetic properties of disordered oxides with iron and manganese ions Reviewed

Katsuhisa Tanaka, Hirofumi Akamatsu, Seisuke Nakashima, Koji Fujita

JOURNAL OF NON-CRYSTALLINE SOLIDS   354 ( 12-13 )   1347 - 1352   2008.2

Magnetic properties of amorphous Fe2O3-R2O3 (R = La, Gd and Tb) thin films fabricated by sputtering method Reviewed

Hirofumi Akamatsu, Shunsuke Murai, Koji Fujita, Katsuhisa Tanaka

GLASS - THE CHALLENGE FOR THE 21ST CENTURY   39-40   207 - 212   2008

Spin dynamics in oxide glass of Fe2O3-Bi2O3-B2O3 system Reviewed

Hirofumi Akamatsu, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   310 ( 2 )   1506 - 1507   2007.3

Spin dynamics in Fe2O3-TeO2 glass: Experimental evidence for an amorphous oxide spin glass Reviewed

Hirofumi Akamatsu, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai

PHYSICAL REVIEW B   74 ( 1 )   2006.7

Ferromagnetism in amorphous europium titanate thin films

ZONG Yanhua, FUJITA Koji, AKAMATSU Hirofumi, MURAI Shunsuke, TANAKA Katsuhisa

( 56 )   112 - 113   2010.5

424 Magnetic Properties of Amorphou EuZrO_3 Thin Film

ZONG Yanhua, AKAMATSU Hirofumi, FUJITA Koji, MURAI Shunsuke, TANAKA Katsuhisa

59   348 - 348   2010

29pTF-5 Ferromagnetic interactions in Eu^<2+>-based amorphous oxides

Akamatsu H., Fujita K., Takemoto N., Murai S., Tanaka K.

Meeting abstracts of the Physical Society of Japan   64 ( 1 )   504 - 504   2009.3

327 Synthesis of Europium Titanate Thin Films and Their Ferromagnetic Properties

WAKASUGI Naoki, AKAMATSU Hirofumi, TAKEMOTO Naohiro, ZONG Yanhua, FUJITA Koji, MURAI Shunsuke, TANAKA Katsuhisa

58   282 - 282   2009

24pWK-1 Magnetic properties of CdFe_2O_4 sputtered thin films

Akamatsu H., Fujiki Y., Zong Yanhua, Murai S., Fujita K., Tanaka K.

Meeting abstracts of the Physical Society of Japan   63 ( 1 )   481 - 481   2008.2

22pWE-2 Magnetic properties of oxide glasses containing iron

Akamatsu H., Oku S., Tanaka K., Fujita K., Murai S.

Meeting abstracts of the Physical Society of Japan   62 ( 2 )   491 - 491   2007.8

27pPSB-16 Spin dynamics of magnetic oxide glasses

Akamatsu H., Tanaka K., Fujita K., Murai S.

Meeting abstracts of the Physical Society of Japan   61 ( 1 )   454 - 454   2006.3

磁性イオン含有酸化物ガラスの低温における磁気特性

赤松寛文, 田中勝久, 村井俊介, 藤田晃司

京都大学低温物質科学研究センター誌   ( 6 (Web) )   2005

616 Magnetic Transition of Amorphous Transition Metal Oxides

TANAKA Katsuhisa, AKAMATSU Hirofumi, MURAI Shunsuke, FUJITA Koji

54   407 - 407   2005

遷移金属チオラートを前駆体とする硫化物ナノ粒子の作製

松川 祐子, 長谷川 丈二, 赤松 寛文, 林 克郎

新学術複合アニオン第8回若手スクール  2020.1 

スピノーダル分解を利用した共連続ポリイミドゲルの作製と低密度化

指山 雄太郎, 長谷川 丈二, 赤松 寛文, 林 克郎

新学術複合アニオン第8回若手スクール  2020.1 

単純ペロブスカイトBaM1-xYxO3-x/2 (M = Zr, Sn, Ce)における固相還元の効果

小川 雄也, 長谷川 丈二, 赤松 寛文, 藤井 孝太郎, 八島 正知, 林 克郎

新学術複合アニオン第8回若手スクール  2020.1 

Sai Niu, Hirofumi Akamatsu, Yuto Akiyama, George Hasegawa, Katsuro Hayashi

Sai Niu, Hirofumi Akamatsu, Yuto Akiyama, George Hasegawa, Katsuro Hayashi

PACRIM13  2019.10 

Electrical Conductivity of OlivineType MgMSiO4

Nanami Ikeda, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

PACRIM13  2019.10 

Preparation of Oxide-Based Na Ion Battery by Tape-Casting Laminate NASICON-type Ceramics

Takehiro Kashihara, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

PACRIM13  2019.10 

Fabrication of NASICON-type All-Solid-State Sodium-Ion Batteries

Naoya Sasaki, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

PACRIM13  2019.10 

Synthesis and Physical Properties of Carrier-doped Layered Perovskite Ca3Ti2O7

Kazuhisa Kishimoto, Hirofumi Akamatsu, George Hasegawa, Katsuro Hayashi

PACRIM13  2019.10 

Hydrothermal Synthesis of layered Niobium Phosphates and delaminated

Yuichiro Yoshida, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

PACRIM13  2019.10 

Topochemical Synthesis and Structural Analysis of Lithium Niobate-Type Fluorides

Masahiro Kitakado, Hirofumi Akamatsu, George Hasegawa, Katsuro Hayashi

PACRIM13  2019.10 

Synthesis of Mesoporous SrFeOx Particles from Hydrogarnet Precursor

Hikaru Otaguro, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

PACRIM13  2019.10 

Metal-Hydride Reduction of Primitive Perovskites BaM1?xYxO3?x/2 (M = Zr, Sn, Ce)

Yuya Ogawa, George Hasegawa, Hirofumi Akamatsu, Kotaro Fujii, Masatomo Yashima, Miki Inada, Satoru Matsuishi, Katsuro Hayashi

PACRIM13  2019.10 

Synthesis, Morphology and Crystallography of Cobalt Thiolates Nanoparticles

Yuko Matsukawa, George Hasegawa, Hirofumi Akamatsu, Katsuro Hayashi

PACRIM13  2019.10 

ハイドロガーネットを前駆体としたメソポラスSrFeOxの作成

大田黒 光, 長谷川 丈二, 赤松 博文, 林 克郎

日本ゾル-ゲル学会第17回討論会  2019.8 

Hydride ions and oxygen vacancies in severely-reduced primitive cubic perovskites

Katsuro Hayashi, Hiroshi Watanabe, Hirofumi Akamatsu, George Hasegawa

E-MRS 2019 Spring Meeting  2019.5 

チオール化合物を硫黄源とする硫化コバルトナノ粒子の作製

松川 祐子, 長谷川 丈二, 赤松 寛文, 林 克郎

新学術複合アニオン第6回若手スクール  2019.5 

水熱法による層状リン酸ニオブ化合物の合成と剥離

吉田 雄一郎, 長谷川 丈二, 赤松 寛文, 林 克郎

新学術複合アニオン第6回若手スクール  2019.5 

結晶相転移誘起相分離を利用した多孔質メソクリスタルの作製

大田黒 光, 長谷川 丈二, 赤松 寛文, 林 克郎

新学術複合アニオン第6回若手スクール  2019.5 

単純ペロブスカイト BaM1?xYxO3?x/2 (M=Zr,Sn,Ce)における固相還元の効果

小川 雄也, 林 克郎, 長谷川 丈二, 赤松 寛文, 渡部 寛, 藤井 孝太郎, 八島 正知, 松石 聡

新学術複合アニオン第6回若手スクール  2019.5 

Preparation of Crystalline Na3V2(PO4)3 by Glass-Ceramic Process

Sai Niu, Hirofumi Akamatsu, Yuto Akiyama, George Hasegawa, Katsuro Hayashi

セラミックス協会2019年年会  2019.3 

Preparation of Crystalline Na3V2(PO4)3 by Glass-Ceramic Process

Sai Niu, Hirofumi Akamatsu, Yuto Akiyama, George Hasegawa, Katsuro Hayashi

セラミックス協会2019年年会  2019.3 

層状ペロブスカイト Ca3Ti2O7への水素化物イオンドーピング

岸本 和久, 赤松 寛文, 長谷川 丈二, 林 克郎

セラミックス協会2019年年会  2019.3 

層状ペロブスカイト Ca3Ti2O7への水素化物イオンドーピング

岸本 和久, 赤松 寛文, 長谷川 丈二, 林 克郎

セラミックス協会2019年年会  2019.3 

水熱法による層状リン酸ニオブ化合物の合成と剥離

吉田 雄一郎, 長谷川 丈二, 赤松 寛文, 林 克郎

セラミックス協会2019年年会  2019.3 

水熱法による層状リン酸ニオブ化合物の合成と剥離

吉田 雄一郎, 長谷川 丈二, 赤松 寛文, 林 克郎

セラミックス協会2019年年会  2019.3 

ニオブ酸リチウム構造をもつLiMF3(M = Fe, Co)のトポケミカル合成

北角 将晃, 赤松 寛文, 長谷川 丈二, 林 克郎

新学術複合アニオン第5回若手スクール  2019.1 

ニオブ酸リチウム構造をもつLiMF3(M = Fe, Co)のトポケミカル合成

北角 将晃, 赤松 寛文, 長谷川 丈二, 林 克郎

新学術複合アニオン第5回若手スクール  2019.1 

Na+イオン二次電池用NASICON型複合アニオン正極材料の探索

佐々木 直哉, 長谷川 丈二, 赤松 寛文, 林 克郎

新学術複合アニオン第5回若手スクール  2019.1 

密度半関数理論によるルドルスデン-ポッパー層状酸化物強誘電体の探索

白井 佑弥, 赤松 寛文, 長谷川 丈二, 林 克郎

第28回日本MRS年次大会  2018.12 

密度半関数理論によるルドルスデン-ポッパー層状酸化物強誘電体の探索

白井 佑弥

第28回日本MRS年次大会  2018.12 

Preparation and Electrochemical Properties of Na3V2(PO4)3 Ceramic Sheet

He Wang, George Hasegawa, Yuto Akiyama, Hirofumi Akamatsu, Katsuro Hayashi

第44回固体イオニクス討論会  2018.12 

Preparation and Electrochemical Properties of Na3V2(PO4)3 Ceramic Sheet

He Wang, George Hasegawa, Yuto Akiyama, Hirofumi Akamatsu, Katsuro Hayashi

第44回固体イオニクス討論会  2018.12 

Self-Standing Na3V2(PO4)3 Ceramic Sheet Prepared with Sintering Aid of Na2O-Nb2O5-P2O5 Glass for All Solid State Battery

He Wang, George Hasegawa, Yuto Akiyama, Hirofumi Akamatsu, Miki Inada, Katsuro Hayashi

5th SCI workshop  2018.9 

Self-Standing Na3V2(PO4)3 Ceramic Sheet Prepared with Sintering Aid of Na2O-Nb2O5-P2O5 Glass for All Solid State Battery

He Wang, George Hasegawa, Yuto Akiyama, Hirofumi Akamatsu, Miki Inada, Katsuro Hayashi

5th SCI workshop  2018.9 

Exploration of novel ferroelectric layered perovskite oxides by first-principles calculations

Yuya Shirai, Hirofumi Akamatsu, George Hasegawa, Katsuro Hayashi

5th SCI workshop  2018.9 

High concentration of Sn2+ in reduced BaSn1-xYxO3-x/2

Hiroshi Watanabe, George Hasegawa, Hirofumi Akamatsu, Kotaro Fujii, Masatomo Yashima, Miki Inada, Katsuro Hayashi

5th SCI workshop  2018.9 

Exploration of novel ferroelectric layered perovskite oxides by first-principles calculations

Yuya Shirai, Hirofumi Akamatsu, George Hasegawa, Katsuro Hayashi

5th SCI workshop  2018.9 

High concentration of Sn2+ in reduced BaSn1-xYxO3-x/2

Hiroshi Watanabe, George Hasegawa, Hirofumi Akamatsu, Kotaro Fujii, Masatomo Yashima, Miki Inada, Katsuro Hayashi

5th SCI workshop  2018.9 

第一原理計算による新規層状ペロブスカイト酸窒化物強誘電体の探索

白井 佑弥, 赤松 寛文, 長谷川 丈二, 林 克郎

セラミックス協会第31回秋季シンポジウム  2018.9 

BaSnO3 系ペロブスカイトへの水素化物イオンドーピング

渡部 寛, 長谷川 丈二, 赤松 寛文, 林 克郎

セラミックス協会第31回秋季シンポジウム  2018.9 

SPS 配向 Ti3AlC2 を用いた配向 MXene の生成

鶴野 伸嘉, 嶋 一成, 長谷川 丈二, 赤松 寛文, 林 克郎

セラミックス協会第31回秋季シンポジウム  2018.9 

クエン酸ゲル前駆体からのNASICON型化合物／カーボン複合体の作製とその電気化学特性評価

秋山 優斗, 長谷川 丈二, 赤松 寛文, 林 克郎

セラミックス協会第31回秋季シンポジウム  2018.9 

Dion-Jacobson型層状ペロブスカイト(Rb, Cs)NdNb2O7の構造と誘電特性

麻木 宗太, 赤松 寛文, 長谷川 丈二, 林 克郎

セラミックス協会第31回秋季シンポジウム  2018.9 

Mg二次電池用NASICON系複合アニオン正極材料の探索

佐々木 直哉, 秋山 優斗, 長谷川 丈二, 赤松 寛文, 林 克郎

新学術複合アニオン第4回若手スクール  2018.8 

層状ペロブスカイトCa3Ti2O7への水素化物イオンドーピング

岸本 和久, 赤松 寛文, 長谷川 丈二, 林 克郎

新学術複合アニオン第4回若手スクール  2018.8 

階層的多孔構造を有するフェノール樹脂の細孔構造制御と炭素化

矢野 貴也, 長谷川 丈二, 赤松 寛文, 林 克郎

日本ゾル-ゲル学会第16回討論会  2018.8 

Computational and experimental study of functional structural distortions in layered perovskite oxides International conference

18th International Conference and Exhibition on Materials Science and Engineering  2018.5 

Computational and Experimental Study of Functional Structural Distortions in Layered Perovskite Oxides Invited International conference

H. Akamatsu

MatScience2018  2018.5 

液相法を用いたコバルト硫化物ナノ粒子の作製

松川 祐子, 長谷川 丈二, 赤松 寛文, 林 克郎

日本セラミックス協会2018年年会  2018.3 

シート状化合物 Ti3C2Tx を前駆体とした特異構造を有する窒化チタンの作製

西見 和真, 長谷川 丈二, 赤松 寛文, 林 克郎

第56回セラミックス基礎科学討論会  2018.1 

層状ペロブスカイトにおける酸素配位八面体回転による中心対称性の破れ

第27回日本MRS年次大会  2017.12 

Kinetic Analysis of Adsorption and Photodecomposition Processes on TiO2 Particles with Different Crystalline Phases

Yuko MATSUKAWA, Miki INADA, George HASEGAWA, Hirofumi AKAMATSU, Naoya ENOMOYO, Katsuro HAYASHI

The 34th International Japan-Korea Seminar on Ceramics  2017.11 

Mg(BF4)2系電解液中での Mg 電析反応の電極基板依存性

田中 萌子, 長谷川 丈二, 赤松 寛文, 林 克郎

第58回電池討論会  2017.11 

液相合成TiO2(B)の低温還元

田中 萌子, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

日本セラミックス協会 第31回秋季シンポジウム  2017.9 

水熱合成正方晶 BaTiO3 結晶中の水酸化物イオン

倉田 真志, 稲田 幹, 長谷川 丈二, 赤松 寛文, 林 克郎, 前園 涼, 本郷 研太

日本セラミックス協会 第34回秋季シンポジウム  2017.9 

Aサイト秩序型n=1ルドルスデン-ポッパー相における酸素配位八面体回転による中心対称性の破れ

日本セラミックス協会第30回秋季シンポジウム  2017.9 

W をドープした Ti3AlC2の作製と金属炭化物ナノシートへの転換

嶋 一成, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

日本セラミックス協会 第32回秋季シンポジウム  2017.9 

NASICON/固体金属Na界面の輸送特性

内田 康博, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

日本セラミックス協会 第33回秋季シンポジウム  2017.9 

Inversion Symmetry Breaking by Oxygen Octahedral Rotation in A-siteordered n=1 Ruddlesden-Popper Phases AA’TiO4 (A=alkaline, A’=rare earth) and the cation size effects International conference

FMS2017  2017.9 

Inversion Symmetry Breaking by Oxygen Octahedral Tilts in Layered Perovskites ARTiO4 (A=Hydrogen, Alkaline, R=Rare Earth) and Unexpected Alkaline Size Effects International conference

IUMRS-ICAM2017  2017.8 

非水系反応によるコバルト硫化物ナノ粒子の形態制御

松川 祐子, 長谷川 丈二, 赤松 寛文, 林 克郎

複合アニオントピカル会議(2017年8月)  2017.8 

金属炭化物ナノシートMXeneへの遷移金属ドーピングと表面官能基制御

嶋 一成, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

複合アニオントピカル会議(2017年8月)  2017.8 

エチレングリコール添加水熱合成BaTiO3結晶中の水酸化物イオン(2)

倉田 真志, 稲田 幹, 長谷川 丈二, 赤松 寛文, 林 克郎

複合アニオントピカル会議(2017年8月)  2017.8 

固相還元処理した電子ドープTiO2(B)

田中 萌子, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

複合アニオントピカル会議(2017年8月)  2017.8 

還元型TiO2(B)の合成

田中 萌子, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

複合アニオンキックオフミーティング(2017年5月)  2017.5 

表面官能基制御を目指したMXeneへの遷移金属元素ドーピング

嶋 一成, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

複合アニオンキックオフミーティング(2017年5月)  2017.5 

エチレングリーコール添加水熱合成BaTiO3結晶中の水酸化物イオン

倉田 真志, 稲田 幹, 長谷川 丈二, 赤松 寛文, 林 克郎

複合アニオンキックオフミーティング(2017年5月)  2017.5 

還元ブルッカイト型二酸化チタンの作製と光触媒特性評価

松川 祐子, 稲田 幹, 長谷川 丈二, 赤松 寛文, 榎本 尚也, 林 克郎

複合アニオンキックオフミーティング(2017年5月)  2017.5 

Ti3C2 MXeneの昇温脱離挙動と新規窒化物材料の生成

西見 和真, 長谷川 丈二, 稲田 幹, 赤松 寛文, 林 克郎

複合アニオンキックオフミーティング(2017年5月)  2017.5 

Enhancement of optical functionalities of magnetic and dielectric materials based on meta-optics

Grant number：21H04619  2021.4 - 2025.3

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

Innovation of long-term stabilization of radioactive nuclides using geomimetics

Grant number：19H00883  2019.4 - 2022.3

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

Sasaki Keiko

Exploration and crystallochemical tuning of novel antiferroelectric layered oxides through a coupling of theory and experiments

Grant number：18H01892  2018 - 2021

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

Akamatsu Hirofumi

In silico design, synthesis, and device fabrication of novel nitride semiconductors

Grant number：17H01318  2017.4 - 2021.3

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

Oba Fumiyasu

Exploration of polar metal materials by first-principles calculations

Grant number：17K19172  2017 - 2018

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

Akamatsu Hirofumi, Gopalan Venkatraman, Mochizuki Yasuhide

酸素配位八面体回転を活用した圧電・強誘電体材料の設計と第一原理計算による材料探索

Grant number：16H06793  2016 - 2017

日本学術振興会  科学研究費助成事業  研究活動スタート支援

赤松 寛文

村田学術財団研究助成金

2016

村田学術財団 

物質科学工学実験第一

2019 Institution：九州大学

物理化学第三

2019 Institution：九州大学

無機物質化学

2019 Institution：九州大学

学術英語３

2019 Institution：九州大学

Inorganic Chemistry A

2019 Institution：Kyushu University

物質科学工学実験第三

2019 Institution：九州大学

無機化学第三

2019 Institution：九州大学

Materials Properties of Ceramics

2018 Institution：Kyushu University

物理化学第三

2018 Institution：九州大学

セラミック材料物性学

2018 Institution：九州大学

無機化学第三

2018 Institution：九州大学

無機物質化学

2018 Institution：九州大学

セラミック工学

2018 Institution：九州大学

Inorganic Chemistry A

2018 Institution：Kyushu University

物理化学第三

2017 Institution：九州大学

Inorganic Chemistry A

2017 Institution：Kyushu University

無機化学第三

2017 Institution：九州大学

課題協学

2017 Institution：九州大学