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2022年

論文 / Original Papers

  1. Synthesis of superparamagnetic Co–Pt nanoparticle in Pyrococcus furiosus virus-like particle crystal
    Makoto Taniguchi, Akifumi Higashiura, Naoto Kobayashi, Daisuke Kanda, Kakeru Tagata, Ryota Fukunishi, Yasunori Yoshikawa, Emi Kuromatsu, Noriaki Kishida, Yoshinori Kotani, Kentaro Toyoki, Tetsuya Nakamura, Ryoichi Nakatani, Atsushi Nakagawa, Yu Shiratsuchi
    Journal of Physics and Chemistry of Solids, Vol. 169, pp. 110840 (6 pp) (2022).
    https://doi.org/10.1016/j.jpcs.2022.110840

  2. Giant converse magnetoelectric effect in a multiferroic heterostructure with polycrystalline Co2FeSi
    Shumpei Fujii, Takamasa Usami, Yu Shiratsuchi, Ireene Azaceta, Adam Krrigan, Amran Mahfudh Yatmeidhy, Shinya Yamada, Takeshi Kanashima, Ryoichi Nakatani, Vlado K. Lazarov, Tamio Oguchi, Yoshihiro Gohda, and Kohei Hamaya
    NPG Asia Materials, Vol. 14, pp. 43(11 pp) (2022).
    https://doi.org/10.1038/s41427-022-00389-1

  3. Low pressure drive of domain wall in Pt/Co/Au/Cr2O3/Pt thin film by magnetoelectric effect
    Jiaqi Shen, Tatsuo Tada, Kentaro Toyoki, Yoshinori Kotani, Ryoichi Nakatani, and Yu Shiratsuchi
    Applied Physics Letters, Vol. 120, pp. 092404(6 pp) (2022).
    https://doi.org/10.1063/5.0083202

  4. Magentic-field and temperature dependence of anomalous Hall effect in Pt/Cr2O3/Pt trilayer
    Xinrui Wang, Kentaro Toyoki, Ryoichi Nakatani, and Yu Shiratsuchi
    AIP Advances, Vol. 12, pp. 035216(5 pp) (2022).
    https://doi.org/10.1063/9.0000253

  5. Converse magnetoelectric effect in epitaxial Co2MnSi/Pb(Mg1/3Nb2/3)O3-PbTiO3 multiferroic heterostructures: Comparison of L21- and B2-orderd Co2MnSi
    Takamasa Usami, Shumpei Fujii, Shinya Yamada, Yu Shiratsuchi, Takeshi Kageshima, Ryoichi Nakatani and Kohei Hamaya
    IEEE Tranaction on Magnetics, Vol. 58, Art N0.2501505, (2022).
    https://doi.org/10.1109/TMAG.2022.3145521

2021年

論文 / Original Papers

  1. Dominant carrier of pseudo gap antiferromagnet Cr3Al thin film
    Kentaro Toyoki, Masayuki Hayashi, Shunsuke Hamaguchi, Shotaro Harimoto, Yu Shiratsuchi, Takafumi Ishibe, Yoshiaki Nakamura, and Ryoichi Nakatani
    Physica B: Physics of Condesed Matter, Vol. 620, pp. 413281 (8 pp) (2021).

  2. Temperature lag with the onset of exchange bias, superparamagnetic blocking and antiferromagnetic ordering in ultrathin ferromagnet/antiferromagnet thin film
    Yu Shiratsuchi, Yiran Tao, Rou Tsutsumi, Kentaro Toyoki and Ryoichi Nakatani
    Journal of Applied Physics, Vol. 130, Issue 19, pp. 193902 (2021)

  3. Structural, magnetic, and electric properties of Pt/Co/Au/Cr2O3/Pt thin film with Cr2O3 layer below 25 nm
    Yu Shiratsuchi (corr. author), Janqi Shen, Yiran Tao, Kohei Takahara, Kentaro Toyoki and Ryoichi Nakatani
    Journal of Magnetics Society of Japan, Vol. 45, No. 4, pp. 101-105 (2021).

  4. Magnetic Properties and Magnetic Domain Observation of Nd-Fe-B Sintered Magnets Treated by Grain Boundary Diffusion Process with Dy-Al Co-Sorption
    Masaru Uenohara, Hiroaki Nishio, Kentaro Toyoki, Yu Shiratsuchi, Ryoichi Nakatani and Ken-ichi Machida
    Materials Transaction, Vol. 62, No. 8, pp. 1216 - 1224 (2021).

  5. Effect of Fe atomic layers on the ferromagnet-semiconductor interface on temperature-dependent spin transport in semiconductors
    Michihiro Yamada, Yu Shiratsuchi, H. Kambe, Kohei Kudo, Shinya Yamada, Kentarou Sawano, Ryoichi Nakatani, and Kohei Hamaya
    Journal of Applied Physics, Vol. 129, pp. 183901(7 pp) (2021).
  6. Giant magnetoelectric effect in an L21-ordered Co2FeSi/Pb(Mg1/3Nb2/3)O3-PbTiO3 multiferroic heterostructure
    T. Usami, S. Fujii, Y. Shiratsuchi, R. Nakatatani and K. Hamaya
    Applied Physics Letters, Vol. 118, 42402 (5pp) (2021).

  7. Magnetoelectric control of antiferromagnetic domain state in Cr2O3 thin film [Topical Review]
    Yu Shiratsuchi, Kentaro Toyoki and Ryoichi Nakatani
    J. Phys. Condens. Matter, Vol. 33, pp. 243001 (18pp) (2021).

  8. Magnetoelectric Induced Switching of Perpendicular Exchange Bias Using 30-nm-Thick Cr2O3 Thin Film [Selected as Journal issue cover]
    Yu Shiratsuchi, Yiran Tao, Kentaro Toyoki and Ryoichi Nakatani
    Magnetochemistry, Vol. 7, pp. 36(10 pp) (2021).

2020年

論文 / Original Papers

  1. Robust magnetic domain in Pt/Co/Au/Cr2O3/Pt stacked film with perpendicular exchange bias
    Yu Shiratsuchi (corr. author), Saori Yoshida, Hiroaki Yoshida, Yoshinori Kotani, Kentaro Toyoki, Chiharu Mitsumata, Ryoichi Nakatani and Tetsuya Nakamura
    Journal of Applied Physics, Vol. 127, Issue 15, pp. 153902(7 pp) (2020).

  2. Giant anomalous Hall conductivity at Pt/Cr2O3 interface
    Takahiro Moriyama (corr. author), Yu Shiratsuchi (corr. author), Tatsuya Iino, Hikaru Aono, Motohiro Suzuki, Tetsuya Nakamura, Yoshinori Kotani, Ryoichi Nakatani, Kohji Nakamura, and Teruo Ono
    Physical Review Applied, Vol. 13, No. 3, pp.034052(8 pp) (2020).

  3. Realization of magnetoelectric effect in 50-nm-thick Cr2O3 thin film
    Yu Shiratsuchi (corr. author), Kentaro Toyoki, Tao Yiran, Hikaru Aono and Ryoichi Nakatani
    Applied Physics Express, Vol. 13, pp. 043003(4 pp) (2020)

  4. Critical behavior of perpendicular exchange bias in Pd/Co/Pt/Cr2O3/Pd stacked films
    Yu Shiratsuchi (corr. author), Motohiro Suzuki, Kentaro Toyoki, Kohei Wakatsu, Takashi Nishimura, Tetsuya Nakamura and Ryoichi Nakatani
    Physica B: Physics of Condesed Matter, Vol. 583, pp. 412052 (5pp) (2020).

  5. Magnetic properties of Co film in Pt/Co/Cr2O3/Pt structure
    Thi Van Anh Nguyen, Yu Shiratsuchi, Hideo Sato, Shoji Ikeda, Tetsuo Endoh, and Yasushi Endo (corr. author)
    AIP Advances, Vol. 19, 015152(6 pp) (2020).

  6. Regeneration of perpendicular exchange bias in high temperature regime in Pt/Co/Au/Cr2O3/Pt stacked films
    Yu Shiratsuchi (corr. author), Daisuke Tokunaga and Ryoichi Nakatani
    Japanese Journal of Applied Physics, Vol. 59,SEEF02 (7 pp) (2020).

2019年

論文 / Original Papers

  1. Enhancement of perpendicular exchange bias by introducing twin boundary in Pt/Co/α-Cr2O3/α-V2O3 epitaxial film
    Yu Shiratsuchi, Saori Yoshida, Satoshi Onoue, Chiharu Mitsumata, Nobuhito Inami, Tetsuro Ueno, Kanta Ono and Ryoichi Nakatani
    Materials Transactions, Vol. 60, No. 9, pp. 2028 - 2032 (2019).

  2. Resistive detection of the Néel temperature of Cr2O3 thin film
    Tatsuya Iino, Takahiro Moriyama, Hiroyuki Iwaki, Hikaru Aono, Yu Shiratsuchi and Teruo Ono
    Applied Physics Letters, Vol. 114, pp. 022402 (2019).

  3. Quantitative identification of constituent phases in a Nd-Fe-B-Cu sintered magnet and temperature dependent change of electron density of Nd2Fe14B studied by synchrotron X-ray diffraction
    Hiroyuki Okazaki, David Billington, Naruki Tsuji, Wakana Ueno, Yoshinori Koatani, Shogo Kawaguchi, Kunihisa Sugimoto, Kentaro Toyoki, Tomoki Fukunaga, Takeshi Nishiuchi, Kazuhiro Hono, Satoshi Hirosawa and Tetsuya nakamura
    Acta Materialia, Vol. 181, pp. 530-536 (2019).

  4. Temperature dependent magnetization reversal process of a Ga-doped Nd-Fe-B sintered magnet based on first-order reversal curve analysis
    Satoshi Okamoto, Kazunori Miyazawa, Takahiro Yomogita, Nobuaki Kikuchi, Osamu Kitakami, Kentaro Toyoki, David Billington, Yoshinori Kotani, Tetsuya Nakamura, Taisuke Sasaki, Tadakatsu Ohkubo, Kazuhiro Hono, Yukio Takada, Takashi Sato, Yuji Kaneko, Akira Kato
    Acta Materialia, Vol. 181, pp. 530-536 (2019).

  5. Microscopic origin of large perpendicular magnetic anisotropy in an FeIr/MgO system
    Shinji Miwa, Takayuki Nozaki, Masahito Tsujikawa, Motohiro Suzuki, Takuya Tsukahara, Takeshi Kawabe, Yoshinori Kotani, Kentaro Toyoki, Minori Goto, Tetsuya Nakamura, Masafumi Shirai, Shinji Yuasa, and Yoshishige Suzuki
    Physical Review B, Vol. 99, pp. 184421 (2019).

  6. First-order reversal curve analysis of a Nd-Fe-B sintered magnet with soft X-ray magnetic circular dichroism microscopy
    Kazunori Miyazawa, Satoshi Okamoto, Takahiro Yomogita, Nobuaki Kikuchi, Osamu Kitakami, Kentaro Toyoki, David Billington, Yoshinori Kotani, Tetsuya Nakamura, Taisuke Sasaki, Tadakatsu Ohkubo, Kazuhiro Hono
    Acta Materialia, Vol. 162, pp. 1-9 (2019).

表彰 / Awards

  1. 第69回 日本金属組織写真賞 奨励賞「走査型軟X線磁気円二色性顕微鏡によるNd-Fe-B焼結磁石破断面の磁場下磁区観察」
    豊木 研太郎(平成22年卒) 高輝度光科学研究センター(現 マテリアル生産科学専攻、マテリアル科学コース 中谷研究室 助教)

2018年

論文 / Original Papers

  1. Frustration and relaxation of antiferromagnetic domains reversed by magneto-electric field cooling [Editor's Pick]
    Yu Shiratsuchi, Shunsuke Watanabe, Shogo Yonemura, Tatsuo Shibata and Ryoichi Nakatani
    AIP Advances, Vol. 8, Issue 12 (2018) 125313.

  2. Antiferromagnetoic domain wall creep driven by magnetoelectric effect
    Yu Shiratsuchi, Hiroaki Yoshida, Yoshinori Kotani, Kentaro Toyoki, Thi Van Anh Nguyen, Tetsuya Nakamura and Ryoichi Nakatani
    APL Materials, Vol. 6, (2018) 121104.

  3. Obsevation of the magnetoelectric reversal process of the antiferromagnetic domain
    Yu Shiratsuchi, Shunsuke Watanabe, Hiroaki Yoshida, Noriaki Kishida, Ryoichi Nakatani, Yoshinori Kotani, Kentaro Toyoki and Tetsuya Nakamura
    Applied Physics Letters, Vol. 113, Issue 24 (2018) 242404.

  4. Energy condition of isothermal magnetoelectric switching of perpendicular exchange bias in Pt/Co/Au/Cr2O3/Pt stacked films [Editor's Pick]
    Thi Van Ahn Nguyen, Yu Shiratsuchi, Shogo Yonemura, Tatsuo Shibata and Ryoichi Nakatani
    Journal of Applied Physics, Vol. 123, Issue 23 (2018) 233902.

  5. Development of scanning soft X-ray microscipe for magnetic imaging under high magnetic fields
    Yoshinori Kotani, Yasunori Senba, Kentaro Toyoki, David Billington, Hiroyuki Okazaki, Akira Yasui, Wakana Ueno, Haruhiko Ohashi, Satoshi Hirosawa, Yu Shiratsuchi and Tetsuya Nakamura
    Journal of Synchrotron Raddiation, Vol. 25 (2018) 1444.

  6. Determination of specific ion position of Cr3+ and O2- in Cr2O3 thin film and their relationship to exchange anisotropy at Co/Cr2O3 interface
    Yu Shiratsuchi, Yuuta Nakano, Nobuhito Inami, Tetsuro Ueno, Kanta Ono, Reiji Kumai, Ryoko Sagayama and Ryoichi Nakatani
    Journal of Applied Physics, Vol. 123 (2018) 103903.

  7. Magnetoelectric control of antiferromagnetic domain state of Cr2O3 thin film toward spintronic application
    Yu Shiratsuchi and Ryoichi Nakatani
    Journal of Magnetics Society of Japan, Vol. 42, No. 6 (2018) 119.

  8. Stabke contrast mode on TiO2(110) surface with metal-coated tip using AFM
    Y. J. Li, H. Wen, Q. Zhang, Y. Adachi, E. Arima, Y. Kinoshita, H. Nomura, Z. Ma, L. Kou, Y. Tsukuda, Y. Naitoh, Y. Sugawara, R. Xu and Z. Cheng
    Ultramicroscopy, Vol. 191 (2018) 51.

2017年度以前はこちら

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