EN

基本情報

研究

社会活動

その他の活動

豊木 研太郎

Toyoki Kentarou

工学研究科 マテリアル生産科学専攻,助教

keyword 磁性薄膜,表面・界面物性

学歴

  • 2012年04月 ~ 2015年09月,大阪大学,大学院工学研究科,マテリアル生産科学専攻
  • 2010年04月 ~ 2012年03月,大阪大学,大学院工学研究科,マテリアル生産科学専攻

経歴

  • 2019年04月 ~ 継続中,大阪大学,大学院工学研究科,助教
  • 2015年09月 ~ 2019年03月,公益財団法人高輝度光科学研究センター,利用研究促進部門,博士研究員

研究内容・専門分野

  • ナノテク・材料,金属材料物性

所属学会

  • 日本金属学会
  • 日本磁気学会

論文

  • Giant gate modulation of antiferromagnetic spin reversal by the magnetoelectric effect,Kakeru Ujimoto,Hiroki Sameshima,Kentaro Toyoki,Takahiro Moriyama,Kohji Nakamura,Yoshinori Kotani,Motohiro Suzuki,Ion Iino,Naomi Kawamura,Ryoichi Nakatani,Yu Shiratsuchi,NPG Asia Materials,Vol. 16,No. 1,2024年12月,研究論文(学術雑誌)
  • Influence of long- and short-range chemical order on spontaneous magnetization in single-crystalline Fe<sub>0.6</sub>Al<sub>0.4</sub> compound thin films,Kentaro Toyoki,Daigo Kitaguchi,Yu Shiratsuchi,Ryoichi Nakatani,Journal of Physics: Condensed Matter,IOP Publishing,Vol. 36,No. 13,p. 135805-135805,2023年12月28日,研究論文(学術雑誌)
  • Direct observation and stochastic analysis on thermally activated nucleation and growth of individual magnetic domain,Fangfei Luo,Kentaro Toyoki,Chiharu Mitsumata,Jiaqi Shen,Ryoichi Nakatani,Yu Shiratsuchi,Journal of Magnetism and Magnetic Materials,Elsevier BV,p. 171228-171228,2023年09月,研究論文(学術雑誌)
  • Direct observation of antiferromagnetic domains and field-induced reversal in Pt/Cr2O3/Pt epitaxial trilayers,Kakeru Ujimoto,Hiroki Sameshima,Kentaro Toyoki,Yoshinori Kotani,Takahiro Moriyama,Kohji Nakamura,Ryoichi Nakatani,Yu Shiratsuchi,Applied Physics Letters,AIP Publishing,Vol. 123,No. 2,2023年07月10日,研究論文(学術雑誌)
  • Chemical order, unit cell volume, and spontaneous magnetization in vapor-quenched single crystalline Fe<sub>0.6</sub>Al<sub>0.4</sub> alloy thin film,Kentaro Toyoki,Daigo Kitaguchi,Yu Shiratsuchi,Ryoichi Nakatani,2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers),IEEE,2023年05月,研究論文(国際会議プロシーディングス)
  • Finite size effect and dimensional crossover in antiferromagnetic epitaxial Cr<sub>2</sub>O<sub>3</sub> thin films,Hiroki Sameshima,Kakeru Ujimoto,Rou Tsutsumi,Kentaro Toyoki,Ryoichi Nakatani,Yu Shiratsuchi,2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers),IEEE,2023年05月,研究論文(国際会議プロシーディングス)
  • Frequency dependence of coercivity in nickel and Co–Fe–B thin film for DC to 100 kHz region,K. Toyoki,S. Matsui,Y. Shiratsuchi,Y. Endo,R. Nakatani,Japanese Journal of Applied Physics,IOP Publishing,2023年03月01日,研究論文(学術雑誌)
  • Peculiar temperature dependence of magneto-optic Kerr rotation associated with antiferromagnetic–paramagnetic transition,Hirofumi Ekawa,Takashi Okano,Oujin Huang,Ion Iino,Kentaro Toyoki,Ryoichi Nakatani,Takeshi Kato,Yu Shiratsuchi,Japanese Journal of Applied Physics,IOP Publishing,2023年03月01日,研究論文(学術雑誌)
  • Gate-induced switching of perpendicular exchange bias with very low coercivity in Pt/Co/Ir/Cr<sub>2</sub>O<sub>3</sub>/Pt epitaxial film,Hirofumi Ekawa,Jiaqi Shen,Kentaro Toyoki,Ryoichi Nakatani,Yu Shiratsuchi,Applied Physics Letters,AIP Publishing,Vol. 122,No. 6,p. 062404-062404,2023年02月06日,研究論文(学術雑誌)
  • Anomalous Hall effect in Pt/Al-doped Cr<sub>2</sub>O<sub>3</sub> epitaxial film,Ion Iino,Tatsuo Tada,Kentaro Toyoki,Ryoichi Nakatani,Yu Shiratsuchi,AIP Advances,AIP Publishing,Vol. 13,No. 1,p. 015035-015035,2023年01月01日,研究論文(学術雑誌)
  • Increase of Néel temperature of magnetoelectric Cr2O3 thin film by epitaxial lattice matching,Xinrui Wang,Kakeru Ujimoto,Kentaro Toyoki,Ryoichi Nakatani,Yu Shiratsuchi,Applied Physics Letters,AIP Publishing,Vol. 121,No. 18,p. 182402-182402,2022年10月31日,研究論文(学術雑誌)
  • 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,Elsevier BV,Vol. 169,p. 110840-110840,2022年06月,研究論文(学術雑誌)
  • Control of perpendicular magnetic anisotropy at the Fe/MgO interface by phthalocyanine insertion,Shoya Sakamoto,Edward Jackson,Takeshi Kawabe,Takuya Tsukahara,Yoshinori Kotani,Kentaro Toyoki,Emi Minamitani,Yoshio Miura,Tetsuya Nakamura,Atsufumi Hirohata,Shinji Miwa,Physical Review B,American Physical Society (APS),Vol. 105,No. 18,2022年05月13日,研究論文(学術雑誌)
  • Magnetic-field and temperature dependence of anomalous Hall effect in Pt/Cr<sub>2</sub>O<sub>3</sub>/Pt trilayer,Xinrui Wang,Kentaro Toyoki,Ryoichi Nakatani,Yu Shiratsuchi,AIP Advances,AIP Publishing,Vol. 12,No. 3,p. 035216-035216,2022年03月01日,研究論文(学術雑誌)
  • Low pressure drive of the domain wall in Pt/Co/Au/Cr<sub>2</sub>O<sub>3</sub>/Pt thin films by the magnetoelectric effect,Jiaqi Shen,Tatsuo Tada,Kentaro Toyoki,Yoshinori Kotani,Ryoichi Nakatani,Yu Shiratsuchi,Applied Physics Letters,AIP Publishing,Vol. 120,No. 9,p. 092404-092404,2022年02月28日,研究論文(学術雑誌)
  • Magnetic Domain Structure Observation for Initial Magnetization and Demagnetization Processes of a Nd-Fe-B Hot-Deformed Magnet Using Soft X-ray Magnetic Circular Dichroism Microscopy,M. Takeuchi,T. Yomogita,N. Kikuchi,K. Toyoki,S. Kobayashi,Y. Kotani,T. Nakamura,K. Hioki,S. Okamoto,Journal of the Japan Institute of Metals and Materials,Japan Institute of Metals,Vol. 86,No. 1,p. 1-7,2022年01月01日,研究論文(学術雑誌)
  • Strain-induced modulation of temperature characteristics in ferrimagnetic Tb–Fe films,Shinya Ota,Pham Van Thach,Hiroyuki Awano,Akira Ando,Kentaro Toyoki,Yoshinori Kotani,Tetsuya Nakamura,Tomohiro Koyama,Daichi Chiba,Scientific Reports,Springer Science and Business Media LLC,Vol. 11,No. 1,p. 6237-6237,2021年12月,研究論文(学術雑誌)
  • 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,Ryoichi Nakatani,Journal of Applied Physics,AIP Publishing,Vol. 130,No. 19,p. 193902-193902,2021年11月21日,研究論文(学術雑誌)
  • Dominant carrier of pseudo-gap antiferromagnet Cr3Al thin film,Kentaro Toyoki,Masayuki Hayashi,Shunsuke Hamaguchi,Noriaki Kishida,Yu Shiratsuchi,Takafumi Ishibe,Yoshiaki Nakamura,Ryoichi Nakatani,Physica B: Condensed Matter,Elsevier BV,Vol. 620,p. 413281-413281,2021年11月,研究論文(学術雑誌)
  • 光源の違いによる走査型X線後方散乱ラウエ顕微鏡の性能比較,隅谷 和嗣,豊木 研太郎,石上 啓介,梶原 堅太郎,中村 哲也,田村 隆治,木田 潤一郎,加藤 涼,松浦 裕,米山 祐輔,笹田 星児,北岸 浩一,加藤 千景,SPring-8/SACLA利用研究成果集,Vol. 9,No. 6,p. 405-410,2021年10月,研究論文(大学,研究機関等紀要)
  • Effect of hydrogenation-disproportionation-desorption-recombination powder processing on the demagnetization process of Nd-Fe-B sintered magnets analyzed by soft X-ray magnetic circular dichroism microscopy,A. Martin-Cid,T. Kawahara,S. Kobayashi,K. Toyoki,D. Billington,Y. Kotani,H. Kubo,Y. Une,T. Iriyama,M. Sagawa,T. Nakamura,Journal of Magnetism and Magnetic Materials,Elsevier BV,Vol. 538,p. 168308-168308,2021年07月,研究論文(学術雑誌)
  • Magnetoelectric Induced Switching of Perpendicular Exchange Bias Using 30-nm-Thick Cr2O3 Thin Film,Yu Shiratsuchi,Yiran Tao,Kentaro Toyoki,Ryoichi Nakatani,Magnetochemistry,MDPI AG,Vol. 7,No. 3,p. 36-36,2021年03月09日,研究論文(学術雑誌)
  • Relationship between the microstructure, local magnetism and coercivity in Ga-containing Nd-Fe-B sintered magnets,David Billington,Hiroyuki Okazaki,Kentaro Toyoki,Yoshinori Kotani,Yukio Takada,Takashi Sato,Yuji Kaneko,Akira Kato,Taisuke T. Sasaki,Tadakatsu Ohkubo,Kazuhiro Hono,Tetsuya Nakamura,Acta Materialia,Elsevier BV,Vol. 205,p. 116517-116517,2021年02月,研究論文(学術雑誌)
  • Structural, magnetic, and electric properties of pt/co/au/cr2o3/pt thin film with cr2o3 layer below 25 nm,Yu Shiratsuchi,Jiaqi Shen,Yiran Tao,Kohei Takahara,Kentaro Toyoki,Ryoichi Nakatani,Journal of the Magnetics Society of Japan,The Magnetics Society of Japan,Vol. 45,No. 4,p. 101-105,2021年,研究論文(学術雑誌)
  • Magnetic properties and magnetic domain observation of ndfeb sintered magnets treated by grain boundary diffusion process with dyal co-sorption,Masaru Uenohara,Hiroaki Nishio,Kentaro Toyoki,Yu Shiratsuchi,Ryoichi Nakatani,Ken Ichi Machida,Materials Transactions,Japan Institute of Metals,Vol. 62,No. 8,p. 1216-1224,2021年,研究論文(学術雑誌)
  • Bulk and element-specific magnetism of medium-entropy and high-entropy Cantor-Wu alloys,D. Billington,A. D. N. James,E. I. Harris-Lee,D. A. Lagos,D. O'Neill,N. Tsuda,K. Toyoki,Y. Kotani,T. Nakamura,H. Bei,S. Mu,G. D. Samolyuk,G. M. Stocks,J. A. Duffy,J. W. Taylor,S. R. Giblin,S. B. Dugdale,Physical Review B,American Physical Society (APS),Vol. 102,No. 17,2020年11月05日,研究論文(学術雑誌)
  • Time-resolved imaging of an operating hard-disk-drive write head using nano-beam x-ray magnetic circular dichroism,Hirofumi Suto,Akira Kikitsu,Yoshinori Kotani,Tomoyuki Maeda,Kentaro Toyoki,Hitoshi Osawa,Nobuaki Kikuchi,Satoshi Okamoto,Tetsuya Nakamura,Journal of Applied Physics,AIP Publishing,Vol. 128,No. 13,p. 133903-133903,2020年10月07日,研究論文(学術雑誌)
  • Orbital-dependent electric field effect on magnetism in ultrathin cobalt,Kihiro T. Yamada,Yoichi Shiota,Tomohiro Koyama,Yoshinori Kotani,Kentaro Toyoki,Hayato Mizuno,Fuyuki Ando,Kohji Nakamura,Tetsuya Nakamura,Daichi Chiba,Teruo Ono,Physical Review B,American Physical Society (APS),Vol. 102,No. 10,2020年09月17日,研究論文(学術雑誌)
  • Effects of texture on lattice constants of Nd2Fe14B and their relationship with internal stress in Nd-Fe-B permanent magnets,S. Kobayashi,A. Martín-Cid,K. Toyoki,H. Okazaki,S. Kawaguchi,S. Hirosawa,T. Nakamura,Physical Review Materials,American Physical Society (APS),Vol. 4,No. 9,2020年09月14日,研究論文(学術雑誌)
  • Voltage-controlled magnetic anisotropy in an ultrathin nickel film studied by operando x-ray magnetic circular dichroism spectroscopy,Risa Miyakaze,Shoya Sakamoto,Takeshi Kawabe,Takuya Tsukahara,Yoshinori Kotani,Kentaro Toyoki,Tetsuya Nakamura,Minori Goto,Yoshishige Suzuki,Shinji Miwa,PHYSICAL REVIEW B,AMER PHYSICAL SOC,Vol. 102,No. 1,2020年07月,研究論文(学術雑誌)
  • Robust magnetic domain of Pt/Co/Au/Cr<inf>2</inf>O<inf>3</inf>/Pt stacked films with a perpendicular exchange bias,Yu Shiratsuchi,Saori Yoshida,Hiroaki Yoshida,Yoshinori Kotani,Kentaro Toyoki,Ryoichi Nakatani,Chiharu Mitsumata,Tetsuya Nakamura,Journal of Applied Physics,AIP Publishing,Vol. 127,No. 15,p. 153902-153902,2020年04月,研究論文(学術雑誌)
  • Critical behavior of perpendicular exchange bias in Ru/Pd/Co/Pt/Cr<inf>2</inf>O<inf>3</inf>/Pd stacked films,Yu Shiratsuchi,Motohiro Suzuki,Kentaro Toyoki,Kohei Wakatsu,Takashi Nishimura,Tetsuya Nakamura,Ryoichi Nakatani,Physica B: Condensed Matter,Elsevier BV,Vol. 583,p. 412053-412053,2020年04月,研究論文(学術雑誌)
  • Imaging of transient magnetization dynamics of Co/Pt multilayer dots with X-ray magnetic circular dichroism excited by microwaves,N. Kikuchi,T. Yomogita,K. Sato,S. Okamoto,O. Kitakami,H. Osawa,M. Suzuki,K. Toyoki,Y. Kotani,T. Nakamura,Japanese Journal of Applied Physics,IOP Publishing,Vol. 59,No. SE,p. SEED03-SEED03,2020年04月01日,研究論文(学術雑誌)
  • Magnetization manipulation induced by nonlocal spin injection from a perpendicular spin polarizer: nano-beam X-ray MCD study using an order-sorting-aperture collection method,Hirofumi Suto,Nobuaki Kikuchi,Satoshi Okamoto,Kentaro Toyoki,Yoshinori Kotani,Tetsuya Nakamura,Applied Physics Express,IOP Publishing,Vol. 13,No. 4,p. 043002-043002,2020年04月01日,研究論文(学術雑誌)
  • Realization of magnetoelectric effect in 50-nm-thick Cr<inf>2</inf>O<inf>3</inf> thin film,Yu Shiratsuchi,Kentaro Toyoki,Tao Yiran,Hikaru Aono,Ryoichi Nakatani,Applied Physics Express,IOP Publishing,Vol. 13,No. 4,p. 043003-043003,2020年04月,研究論文(学術雑誌)
  • Detection of Spin Transfer from Metal to Molecule by Magnetoresistance Measurement,Hiromu Gamou,Koki Shimose,Ryoto Enoki,Emi Minamitani,Akitoshi Shiotari,Yoshinori Kotani,Kentaro Toyoki,Tetsuya Nakamura,Yoshiaki Sugimoto,Makoto Kohda,Junsaku Nitta,Shinji Miwa,Nano Letters,American Chemical Society (ACS),Vol. 20,No. 1,p. 75-80,2020年01月08日,研究論文(学術雑誌)
  • 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 Kotani,Shogo Kawaguchi,Kunihisa Sugimoto,Kentaro Toyoki,Tomoki Fukagawa,Takeshi Nishiuchi,Kazuhiro Hono,Satoshi Hirosawa,Tetsuya Nakamura,Acta Materialia,Elsevier BV,Vol. 181,p. 530-536,2019年12月,研究論文(学術雑誌)
  • Influence of magnetostriction on the lattice constants of the secondary phases in Nd-Fe-B sintered magnets studied by synchrotron X-ray diffraction,Shintaro Kobayashi,Andrés Martín-Cid,Kentaro Toyoki,Hiroyuki Okazaki,Satoshi Hirosawa,Tetsuya Nakamura,AIP Advances,AIP Publishing,Vol. 9,No. 12,p. 125154-125154,2019年12月01日,研究論文(学術雑誌)
  • 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,Elsevier BV,Vol. 178,p. 90-98,2019年10月,研究論文(学術雑誌)
  • 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,Yoshishige Suzuki,Physical Review B,American Physical Society (APS),Vol. 99,No. 18,2019年05月16日,研究論文(学術雑誌)
  • 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,Elsevier BV,Vol. 162,p. 1-9,2019年01月,研究論文(学術雑誌)
  • Observation of the magnetoelectric reversal process of the antiferromagnetic domain,Yu Shiratsuchi,Shunsuke Watanabe,Hiroaki Yoshida,Noriaki Kishida,Ryoichi Nakatani,Yoshinori Kotani,Kentaro Toyoki,Tetsuya Nakamura,Applied Physics Letters,AIP Publishing,Vol. 113,No. 24,p. 242404-242404,2018年12月10日,研究論文(学術雑誌)
  • Manipulation of Antiferromagnetic Spin Using Tunable Parasitic Magnetization in Magnetoelectric Antiferromagnet,Tomohiro Nozaki,Muftah Al‐Mahdawi,Yohei Shiokawa,Satya Prakash Pati,Shujun Ye,Yoshinori Kotani,Kentaro Toyoki,Tetsuya Nakamura,Motohiro Suzuki,Syougo Yonemura,Tatsuo Shibata,Masashi Sahashi,physica status solidi (RRL) – Rapid Research Letters,Wiley,Vol. 12,No. 12,p. 1800366-1800366,2018年12月,研究論文(学術雑誌)
  • Antiferromagnetic domain wall creep driven by magnetoelectric effect,Yu Shiratsuchi,Hiroaki Yoshida,Yoshinori Kotani,Kentaro Toyoki,Thi Van Anh Nguyen,Tetsuya Nakamura,Ryoichi Nakatani,APL Materials,AIP Publishing,Vol. 6,No. 12,p. 121104-121104,2018年12月01日,研究論文(学術雑誌)
  • Electric field effect on magnetism in a MgO/Pd/Co system with a solid-state capacitor structure,Aya Obinata,Takamasa Hirai,Yoshinori Kotani,Kentaro Toyoki,Tetsuya Nakamura,Tomohiro Koyama,Daichi Chiba,AIP ADVANCES,AMER INST PHYSICS,Vol. 8,No. 11,p. 115122-115122,2018年11月,研究論文(学術雑誌)
  • Unmasking the interior magnetic domain structure and evolution in Nd-Fe-B sintered magnets through high-field magnetic imaging of the fractured surface,David Billington,Kentaro Toyoki,Hiroyuki Okazaki,Yoshinori Kotani,Tomoki Fukagawa,Takeshi Nishiuchi,Satoshi Hirosawa,Tetsuya Nakamura,Physical Review Materials,American Physical Society (APS),Vol. 2,No. 10,2018年10月26日,研究論文(学術雑誌)
  • Realization of a scanning soft X-ray microscope 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,Tetsuya Nakamura,Journal of Synchrotron Radiation,International Union of Crystallography (IUCr),Vol. 25,No. 5,p. 1444-1449,2018年09月01日,研究論文(学術雑誌)
  • Temperature dependence of the crystal structures and phase fractions of secondary phases in a Nd-Fe-B sintered magnet,Naruki Tsuji,Hiroyuki Okazaki,Wakana Ueno,Yoshinori Kotani,David Billington,Akira Yasui,Shogo Kawaguchi,Kunihisa Sugimoto,Kentaro Toyoki,Tomoki Fukagawa,Takeshi Nishiuchi,Yoshihiro Gohda,Satoshi Hirosawa,Kazuhiro Hono,Tetsuya Nakamura,Acta Materialia,Acta Materialia Inc,Vol. 154,p. 25-32,2018年08月01日,研究論文(学術雑誌)
  • Inserted metals for low-energy magnetoelectric switching in a Cr2O3/ferromagnet interfacial exchange-biased thin film system,Shujun Ye,Tomohiro Nozaki,Yoshinori Kotani,Kentaro Toyoki,Tetsuya Nakamura,Syougo Yonemura,Tatsuo Shibata,Satya Prakash Pati,Muftah Al-Mahdawi,Yohei Shiokawa,Masashi Sahashi,Journal of Materials Chemistry C,Royal Society of Chemistry,Vol. 6,No. 12,p. 2962-2969,2018年,研究論文(学術雑誌)
  • Electric-field-induced changes of magnetic moments and magnetocrystalline anisotropy in ultrathin cobalt films,Takeshi Kawabe,Kohei Yoshikawa,Masahito Tsujikawa,Takuya Tsukahara,Kohei Nawaoka,Yoshinori Kotani,Kentaro Toyoki,Minori Goto,Motohiro Suzuki,Tetsuya Nakamura,Masafumi Shirai,Yoshishige Suzuki,Shinji Miwa,Physical Review B,American Physical Society,Vol. 96,No. 22,2017年12月26日,研究論文(学術雑誌)
  • Characterization of the magnetic moments of ultrathin Fe film in an external electric field via high-precision X-ray magnetic circular dichroism spectroscopy,Takuya Tsukahara,Takeshi Kawabe,Koki Shimose,Taishi Furuta,Risa Miyakaze,Kohei Nawaoka,Minori Goto,Takayuki Nozaki,Shinji Yuasa,Yoshinori Kotani,Kentaro Toyoki,Motohiro Suzuki,Tetsuya Nakamura,Yoshishige Suzuki,Shinji Miwa,Japanese Journal of Applied Physics,Japan Society of Applied Physics,Vol. 56,No. 6,p. 060304-060304,2017年06月01日,研究論文(学術雑誌)
  • Simultaneous achievement of high perpendicular exchange bias and low coercivity by controlling ferromagnetic/antiferromagnetic interfacial magnetic anisotropy,Yu Shiratsuchi,Wataru Kuroda,Thi Van Anh Nguyen,Yoshinori Kotani,Kentaro Toyoki,Tetsuya Nakamura,Motohiro Suzuki,Kohji Nakamura,Ryoichi Nakatani,Journal of Applied Physics,AIP Publishing,Vol. 121,No. 7,p. 073902-073902,2017年02月21日,研究論文(学術雑誌)
  • Switching of perpendicular exchange bias in Pt/Co/Pt/α-Cr<inf>2</inf>O<inf>3</inf>/Pt layered structure using magneto-electric effect,Kentaro Toyoki,Yu Shiratsuchi,Atsushi Kobane,Shotaro Harimoto,Satoshi Onoue,Hikaru Nomura,Ryoichi Nakatani,Journal of Applied Physics,AIP Publishing,Vol. 117,No. 17,p. 17D902-17D902,2015年05月07日,研究論文(学術雑誌)
  • Magnetoelectric switching of perpendicular exchange bias in Pt/Co/α-Cr2O3/Pt stacked films,Kentaro Toyoki,Yu Shiratsuchi,Atsushi Kobane,Chiharu Mitsumata,Yoshinori Kotani,Tetsuya Nakamura,Ryoichi Nakatani,Applied Physics Letters,American Institute of Physics Inc.,Vol. 106,No. 16,p. 162404-162404,2015年04月20日,研究論文(学術雑誌)
  • Direct observations of ferromagnetic and antiferromagnetic domains in Pt/Co/Cr2O3/Pt perpendicular exchange biased film,Yu Shiratsuchi,Yoshinori Kotani,Saori Yoshida,Yasunori Yoshikawa,Kentaro Toyoki,Atsushi Kobane,Ryoichi Nakatani,Tetsuya Nakamura,AIMS Materials Science,AIMS Press,Vol. 2,No. 4,p. 484-496,2015年,研究論文(学術雑誌)
  • Equilibrium surface magnetization of α-Cr2O3 studied through interfacial chromium magnetization in Co/α-Cr2O3 layered structures,Kentaro Toyoki,Yu Shiratsuchi,Tetsuya Nakamura,Chiharu Mitsumata,Shotaro Harimoto,Yuichiro Takechi,Takashi Nishimura,Hikaru Nomura,Ryoichi Nakatani,Applied Physics Express,Japan Society of Applied Physics,Vol. 7,No. 11,p. 114201-114201,2014年11月01日,研究論文(学術雑誌)
  • Magnetic domain wall energy in Ni/Co superlattices,Kentaro Toyoki,Takashi Nishimura,Shotaro Harimoto,Yu Shiratsuchi,Ryoichi Nakatani,Journal of Magnetism and Magnetic Materials,Elsevier,Vol. 372,p. 41-46,2014年,研究論文(学術雑誌)
  • High-temperature regeneration of perpendicular exchange bias in a Pt/Co/Pt/α-Cr2O3/Pt thin film system,Yu Shiratsuchi,Yuichiro Takechi,Kentaro Toyoki,Yuuta Nakano,Satoshi Onoue,Chiharu Mitsumata,Ryoichi Nakatani,Applied Physics Express,IOP Publishing,Vol. 6,No. 12,p. 123004-123004,2013年12月,研究論文(学術雑誌)

MISC

  • Magnetoelectric control of antiferromagnetic domain state in Cr<inf>2</inf>O<inf>3</inf>thin film,Yu Shiratsuchi,Kentaro Toyoki,Ryoichi Nakatani,Journal of Physics Condensed Matter,{IOP} Publishing,Vol. 33,No. 24,p. 243001-243001,2021年06月
  • エピタキシャルFe<sub>3</sub>Si(111)薄膜の軟磁性,白土優,豊木研太郎,山田晋也,NGUYEN Thi Van Anh,浜屋宏平,遠藤恭,日本金属学会講演大会(Web),Vol. 166th,2020年
  • 軟X線MCD顕微分光による熱間加工磁石の磁化過程観察 (マグネティックス研究会 ナノスケール構造磁性体,永久磁石,磁性材料,磁気応用一般),竹内 誠,蓬田 貴裕,菊池 伸明,岡本 聡,北上 修,豊木 研太郎,小林 慎太郎,小谷 佳範,中村 哲也,服部 篤,日置 敬子,電気学会研究会資料. MAG = The papers of technical meeting on magnetics, IEE Japan,電気学会,Vol. 2019,No. 79,p. 51-55,2019年08月08日
  • 電気磁気効果によるCo/Cr₂O₃界面の界面交換磁気異方性反転とダイナミクス (スピントロニクスにおける次世代材料開発),白土 優,Nguyen Thi Van Anh,豊木 研太郎,中谷 亮一,社団法人日本磁気学会研究会資料 = Bulletin of Topical Symposium of the Magnetics Society of Japan,日本磁気学会,Vol. 208,p. 39-44,2016年06月09日
  • Ni/Co垂直磁化膜の磁壁エネルギー (磁気記録・情報ストレージ),豊木 研太郎,白土 優,中谷 亮一,電子情報通信学会技術研究報告 = IEICE technical report : 信学技報,一般社団法人電子情報通信学会,Vol. 113,No. 267,p. 17-22,2013年10月24日
  • Ni/Co垂直磁化膜の磁壁エネルギー (マルチメディアストレージ),豊木 研太郎,白土 優,中谷 亮一,映像情報メディア学会技術報告 = ITE technical report,映像情報メディア学会,Vol. 37,No. 42,p. 17-22,2013年10月
  • 磁気力顕微鏡を用いた微小磁性体に対する磁性マニピュレーション手法(映像情報機器、一般),前原 慧,豊木 研太郎,横田 大介,野村 光,中谷 亮一,電子情報通信学会技術研究報告. MR, 磁気記録,一般社団法人電子情報通信学会,Vol. 112,No. 416,p. 21-24,2013年01月18日