Transport Phenomena and Spin-diode effect of Nano-scale ferromagnets in a micro-wave frequency region

• Project/Area Number: 19204039
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Keio University
• Principal Investigator: MIYAJIMA Hideki (2008-2009) Keio University, 理工学部, 教授 (30080451); 宮島 英紀 (2007) Keio University, 理工学部, 教授 (70166180)
• Co-Investigator(Kenkyū-buntansha): YAMAGICHI Akinobu 慶應義塾大学, 理工学部, 助教 (70423035)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥46,280,000 (Direct Cost: ¥35,600,000、Indirect Cost: ¥10,680,000); Fiscal Year 2009: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2008: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000); Fiscal Year 2007: ¥29,770,000 (Direct Cost: ¥22,900,000、Indirect Cost: ¥6,870,000)
• Keywords: ナノ強磁性体 / スピントロニクス / メタマテリアル / スピンダイオード効果 / 微小磁性体 / 高周波応答 / マイクロ波輸送特性 / 強磁性共鳴 / 整流効果 / 磁気渦 / ナノ磁性 / スピン波共鳴 / スピントルク / 強磁性ナノ細線

Research Abstract

The transport phenomena and spin-diode effect of a single layered ferromagnetic Fe_<19>Ni_<18> nano-wires and nano-disks in a radio-frequency (RF) frequency region are investigated. The microwave rectifying effect in single layered ferromagnetic wires is induced by the anisotropic magnetoresistance oscillation due to the magnetization dynamics in the wires. This rectifying effect provides sensitive detection for the magnetization dynamics in nano- or micron scale magnets.

Research Products

• [Journal Article] Non-linear Vortex Motion Induced by the Simultaneous Application of rf and dc Currents in a Micron-sized Fe19Ni81 Disk (2010)
  • Author(s): A. Yamaguchi, K. Motoi, H. Miyajima, T. Sato, Y. Nakatani
  • Journal Title: IEEE Transaction on Magnetics (n press)
  • Peer Reviewed
• [Journal Article] Giant Magnetoresistance Effect Detection of Magnetization Reversal in Single Crystalline Nanowires (2010)
  • Author(s): H. Yamamoto, Y. Kasatani, A. Yamaguchi, H. Miyajima
  • Journal Title: Journal of Physics: Conference Series 200
  • Peer Reviewed
• [Journal Article] Current manipulation of a vortex confined in a micron-sized Fe19Ni81 disk (2010)
  • Author(s): A. Yamaguchi, K. Motoi, H. Miyajima, A. Hirohata, T. Yamaoka, T. Uchiyama, Y. Utsumi
  • Journal Title: Applied Physics Letters 95 Pages: 122506-122506
  • Peer Reviewed
• [Journal Article] Giant Magnetoresistance Effect Detection of Magnetization Reversal in Single Crystalline Nanowires (2010)
  • Author(s): H.Yamamoto, Y.Kasatani, A.Yamaguchi, H.Miyajima
  • Journal Title: Journal of Physics : Conference Series ; International Conference on Magnetism 200 Pages: 42028-42031
  • Peer Reviewed
• [Journal Article] プレーナーホール整流効果を用いた人工磁性体の非線形応答の検出 (2010)
  • Author(s): 山口明啓, 元井桂一, 宮島英紀, 内山剛, 内海裕一
  • Journal Title: 日本磁気学会誌 34 Pages: 73-77
  • NAID: 130000262827
  • Peer Reviewed
• [Journal Article] Anomalous Hall voltage rectification and quantized spin-wave excitation induced by simultaneous application of dc and rf currents in a single-layered Ni81Fe19 nanoscale wire (2009)
  • Author(s): A. Yamaguchi, K. Motoi, A. Hirohata, H. Miyajima
  • Journal Title: Physical Review B79
  • Peer Reviewed
• [Journal Article] 直交2軸電磁石型磁場印加MFMの開発と磁区構造解析への応用 (2009)
  • Author(s): 山岡武博, 蓮村聡, 安藤和徳, 田村政史, 辻川葉奈, 山口明啓, 宮島英紀
  • Journal Title: 日本磁気学会誌 33 Pages: 298-303
  • NAID: 10025969958
  • Peer Reviewed
• [Journal Article] Observation of a bias-dependent constrained magnetic wall in a Ni point contact (2009)
  • Author(s): K. Sekiguchi, A. Yamaguchi, H. Miyajima, A. Hirohata, S. Usui
  • Journal Title: Physical Review B78
  • Peer Reviewed
• [Journal Article] MAGNETIC FIELD DEPENDENCE OF RECTIFICATION RADIO FREQUENCY CURRENT FLOWING THROUGH A SINGLE LAYERED FERROMAGNETIC WIRE (2009)
  • Author(s): A. Yamaguchi, K. Motoi, H. Miyajima, Y. Nakatani
  • Journal Title: Journal of Applied Physics 105
  • Peer Reviewed
• [Journal Article] 直交2軸電磁石型磁場印加MFMの開発と磁区構造解析への応用 (2009)
  • Author(s): 山岡武博, 蓮村聡・安藤和徳・田村政史・辻川葉奈・山口明啓・宮島英紀
  • Journal Title: 日本磁気学会誌 33 Pages: 298-303
  • NAID: 10025969958
  • Peer Reviewed
• [Journal Article] Anomalous Hall voltage rectification and quantized spin-wave excitation induced by simultaneous application of dc and rf currents in a single-layered Ni_81Fe_19 nanoscale wire (2009)
  • Author(s): A.Yamaguchi, K.Motoi, A.Hirohata, H.Miyajima
  • Journal Title: Physical Review B 79
  • Peer Reviewed
• [Journal Article] Current manipulation of a vortex confined in a micron-sized Fe_19Ni_81 disk (2009)
  • Author(s): A.Yamaguchi, K.Motoi, H.Miyajima, A.Hirohata, T.Yamaoka, T.Uchiyama, Y.Utsumi
  • Journal Title: Applied Physics Letters 95
  • Peer Reviewed
• [Journal Article] MAGNETIC FIELD DEPENDENCE OF RECTIFICATION RADIO FREQUENCY CURRENT FLOWING THROUGH A SINGLE (2009)
  • Author(s): A.Yamaguchi, K.Motoi, H.Miyajima, Y.Nakatani
  • Journal Title: Journal of Applied Physics 105
  • Peer Reviewed
• [Journal Article] Magnetic field dependence of rectification radio frequency current flowing through a single layered ferromagnetic wire (2009)
  • Author(s): A. Yamaguchi, K. Motoi, H. Miyajima, Y. Nakatani
  • Journal Title: Journal of Applied Physics 105
  • Peer Reviewed
• [Journal Article] DC electrical response and impedance change induced by a microwave signal in a patterned ferromagnetic wire (2008)
  • Author(s): A. Yamaguchi, K. Motoi, A. Hirohata, N. Higashio, H. Miyajima
  • Journal Title: Proc. SPIE 7036
  • Peer Reviewed
• [Journal Article] Broadband ferromagnetic resonance of Ni81Fe19 wires using a rectifying effect (2008)
  • Author(s): A. Yamaguchi, K. Motoi, A. Hirohata, H. Miyajima, Y. Miyashita, Y. Sanada
  • Journal Title: Physical Review B33
  • Peer Reviewed
• [Journal Article] A silicon metal-oxide-semiconductor field-effect transistor Hall bar for scanning Hall probe microscopy (2008)
  • Author(s): A. Yamaguchi, H. Saito, M. Shimizu, H. Miyajima, S. Matsumoto, Y. Nakamura, A. Hirohata
  • Journal Title: Review of Scientific Instruments 79
  • Peer Reviewed
• [Journal Article] Effect of ferromagnetism on AB oscillations in a normal-metal ring (2008)
  • Author(s): K. Sekiguchi, A. Yamaguchi, H. Miyajima, A. Hirohata
  • Journal Title: Physical Review B77
  • Peer Reviewed
• [Journal Article] 強磁性細線におけるマイクロ波励起による直流電圧発生現 (2008)
  • Author(s): 山口明啓, 宮島英紀
  • Journal Title: 日本磁気学会誌 32 Pages: 334-337
  • Peer Reviewed
• [Journal Article] Observation of a bias-dependent constrained magnetic wall in a Ni point contact (2008)
  • Author(s): S. Sekiguchi, Y. Yamaguchi, H. Miyajima, A. Hitohata, S. Usui
  • Journal Title: Physical Review B78
  • Peer Reviewed
• [Journal Article] DC electrical respomse amd impedance change induced by a microwave signal in a pattered ferromagnetic wire (2008)
  • Author(s): A. Yamaguchi, K. Motoi, H. Miyajima, Y. Sanada
  • Journal Title: Physical Review B78
  • Peer Reviewed
• [Journal Article] Effect of ferromagnetism on AB oscillation in a normal-metal ring (2008)
  • Author(s): K.Sekiguchi, A.Yamaguchi, H.Miyajima and A.Hirohata
  • Journal Title: Physical Review B77
  • Peer Reviewed
• [Journal Article] The rectification of radio-frequency signal by magnetic domain wall in a single-layered ferromagnetic nanowire (2007)
  • Author(s): A. Yamaguchi, H. Miyajima, T. Ono, Y. Suzuki, S. Yuasa
  • Journal Title: Applied Physics Letters 91
  • Peer Reviewed
• [Journal Article] Self-homodyne rf demodulator using a ferromagnetic nanowire (2007)
  • Author(s): A. Yamaguchi, H. Miyajima, S. Kasai, T. Ono
  • Journal Title: Applied Physics Letters 90
  • Peer Reviewed
• [Journal Article] Magnetic Properties of nanometer-scale FeNi antidot array system (2007)
  • Author(s): M. Tanaka, K. Itoh, H. Iwamoto, A. Yamaguchi, H. Miyajima, T. Yamaoka
  • Journal Title: J. Magn, Magn. Mater. 310 Pages: 792-793
  • Peer Reviewed
• [Journal Article] Rectification of radio frequency current in ferromagnetic nanowire (2007)
  • Author(s): A. Yamaguchi, H. Miyajima, T. Ono, Y. Suzuki, S. Yuasa, A. Tulapurkar, Y. Nakatani
  • Journal Title: Applied Physics Letters 90
  • Peer Reviewed
• [Journal Article] Rectification of radio frequency current in ferromagnetic nanowires (2007)
  • Author(s): A.Yamaguchi, H.Miyajima, 他
  • Journal Title: Applied Physics Letters 90
  • Peer Reviewed
• [Journal Article] Self-homodyne rf demodulator using a ferromagnetic nanowire (2007)
  • Author(s): A.Yamaguchi, H.Miyajima, 他
  • Journal Title: Applied Physics Letters 90
  • Peer Reviewed
• [Presentation] NiFe強磁性ドットにおけるボルテックスコアの磁気共鳴と周波数変調 (2010)
  • Author(s): 後藤穣, 畑拓志, 山口明啓, 宮島英紀
  • Organizer: 日本物理学会 第65回年次大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-20
• [Presentation] 単結晶および多結晶Fe細線におけるLLG方程式の減衰定数 (2010)
  • Author(s): 笠谷雄一, 山口明啓, 宮島英紀
  • Organizer: 日本物理学会 第65回年次大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-20
• [Presentation] Self-homodyne detection of Multi-vortex motion induced by rf current in micron-sized Fe19Ni81 ellipse dots (2010)
  • Author(s): A. Yamaguchi, H. Hata, H. Miyajima, T. Sato, Y. Nakatani, A. Hirohata, T. Yamaoka, T. Uchiyama, Y. Utsumi
  • Organizer: 11th Joint MMM-Intermag conference
  • Place of Presentation: (Washington, DC)
  • Year and Date: 2010-01-22
• [Presentation] Non-linear vortex motion induced by simultaneous application of rf and dc current in a micron-sized Fe_19Ni_18 disk (2010)
  • Author(s): A.Yamaguchi, K, Motoi, H.Miyajima, T.Sato, Y.Nakatani
  • Organizer: 11^<th> Joint MMM-Intermag
  • Place of Presentation: Washington DC, USA
  • Year and Date: 2010-01-22
• [Presentation] Self-homodyne detection of Multi-vortex motion induced by rf current in micron-sized Fe_19Ni_81 ellipse dots (2010)
  • Author(s): A.Yamaguchi, H.Hata, H.Miyajima, T.Sato, Y.Nakatani, A.Hirohata, T.Uchiyama, Y.Utsumi
  • Organizer: 11^<th> Joint MMM-Intermag
  • Place of Presentation: Washington DC, USA
  • Year and Date: 2010-01-21
• [Presentation] 電流ならびに磁場による磁気渦共鳴の制御 (2009)
  • Author(s): 山口明啓, 元井桂一, 宮島英紀, 内山剛, 内海裕一
  • Organizer: 日本物理学会 2009年秋季大会
  • Place of Presentation: 熊本大学 黒髪キャンパス
  • Year and Date: 2009-09-27
• [Presentation] 単結晶Feナノ細線中での単一磁壁移動 (2009)
  • Author(s): 笠谷雄一, 山口明啓, 宮島英紀
  • Organizer: 日本磁気学会 第33回日本磁気学会学術講演会
  • Place of Presentation: 長崎大学文教キャンパス
  • Year and Date: 2009-09-15
• [Presentation] パルス励磁アモルファスワイヤ磁気インピーダンスセンサのノイズ特性評価 (2009)
  • Author(s): 内山剛, 山口明啓, 内海裕一
  • Organizer: 日本磁気学会 第33回日本磁気学会学術講演会
  • Place of Presentation: 長崎大学文教キャンパス
  • Year and Date: 2009-09-15
• [Presentation] 異常ホール整流効果を用いたナノ磁性体のスピンダイナミクス検出 (2009)
  • Author(s): 山口明啓, 元井桂一, 宮島英紀, 内山剛, 内海裕一
  • Organizer: 日本磁気学会 第33回日本磁気学会学術講演会
  • Place of Presentation: 長崎大学文教キャンパス
  • Year and Date: 2009-09-13
• [Presentation] Electromagnetic Propagation in Artificial Magnets (2009)
  • Author(s): Akinobu Yamaguchi, Keiichi Motoi, Hideki Miyajima, Tsuyoshi Uchiyama, Yuichi Utsumi, Atsufumi Hirohata
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Detection of Quantized Spin-Wave Excitation by Anomalous Hall voltage Rectification in Nano-Magnets (2009)
  • Author(s): Akinobu Yamaguchi, Keiichi Motoi, Atsufumi Hirohata, Hideki Miyajima
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Detection of Quantized Spin-Wave Excitation by Anomalous Hall voltage Rectification in Nano-Magnets (2009)
  • Author(s): A.Yamaguchi, K.Motoi, A.Hirohata, H.Miyajima
  • Organizer: International Conference on Magnetism 2009
  • Place of Presentation: Karlsurhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Electromagnetic Propagation in Artificial MAgnets (2009)
  • Author(s): 山口明啓, 元井桂一, 宮島英紀, 内山剛, 内海裕一
  • Organizer: International Conference on Magnetism 2009
  • Place of Presentation: Karlsurhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Effect of Ferromagnetism on AB oscillations in a Normal-Meta Ring with a Nano-scale Ferromagnetic dot (2009)
  • Author(s): M.Goto, A.Kanome, K.Sekiguchi, A.Yamaguchi, H.Miyajima
  • Organizer: International Conference on Magnetism 2009
  • Place of Presentation: Karlsurhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Detection of Current-Induced Spin-Wave Excitation using Rectification Effect in Nano-Magnets (2009)
  • Author(s): Keiichi Motoi, Akinobu Yamaguchi, Atsufumi Hirohata, Hideki Miyajima
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] Giant Magnetoresistance Effect Detection of Magnetic Domain Wall Motion in Single Crystalline Nanowires (2009)
  • Author(s): H.Yamamoto, Y.Kasatani, A.Yamaguchi, H.Miyajima
  • Organizer: International Conference on Magnetism 2009
  • Place of Presentation: Karlsurhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] ANOMALOUS HALL VOLTAGE RECTIFICATION EFFECT INDUCED BY SPIN-WAVE EXCITATION (2009)
  • Author(s): A. Yamaguchi, K. Motoi, A. Hirohata, H. Miyajima
  • Organizer: 20th International Colloquium on Magnetic Films and Surfaces
  • Place of Presentation: Freie Universitat Berlin, Berlin, Germany
  • Year and Date: 2009-07-22
• [Presentation] Anomalous Hall voltage rectification effect induced by spin-wave excitation (2009)
  • Author(s): A.Yamaguchi, K.Motoi, A.Hirohata, H.Miyajima
  • Organizer: 20^<th> International Colloquium on Magnetic Films and Surfaces
  • Place of Presentation: Freie Universitat Berlin, Germany
  • Year and Date: 2009-07-22
• [Presentation] Magnetic domain wall motion in ferromagnetic nanowires with crystalline anisotropy (2009)
  • Author(s): Y.Kasatani, H.Yamamoto, A.Yamaguchi, H.Miyajima
  • Organizer: 20^<th> International Colloquium on Magnetic Films and Surfaces
  • Place of Presentation: Freie Universitat Berlin, Germany
  • Year and Date: 2009-07-20
• [Presentation] DC electrical response induced by the simultaneous application of ac and dc currents in artificial ferromagnets (2009)
  • Author(s): A. Hirohata, A. Yamaguchi, K. Motoi, H. Miyajima, T. Uchiyama, Y. Utsumi
  • Organizer: IEEE International Magnetics Conference 2009
  • Place of Presentation: Sacramento Convention Center, Sacramento, California, USA
  • Year and Date: 2009-05-08
• [Presentation] DC electrical response induced by the simultaneous application of ac and dc currents ferromagnets (2009)
  • Author(s): A.Hirohata, A.Yamaguchi, K.Motoi, H.Miyajima, T.Uchiyama, Y.Utsumi
  • Organizer: IEEE International Magnetics Conference(Intermag 2009)
  • Place of Presentation: Sacramento Convention center, Sacramento, California, USA
  • Year and Date: 2009-05-08
• [Presentation] Field dependence of rectification of radio frequency current in a single layered ferromagnetic wire (2008)
  • Author(s): A. Yamaguchi, K. Motoi, H. Miyajima, Y. Nakatani
  • Organizer: 53rd Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Hilton Austin, Austin, Texas, USA
  • Year and Date: 2008-11-13
• [Presentation] DC electrical respomse amd impedance change induced by a microwave signal in a pattered ferromagnetic wire (2008)
  • Author(s): A. Yamaguchi, K. Motoi, A. Hirohata, H. Miyajima
  • Organizer: Society of Photo-Optical Instrumentation Engineers
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2008-10-15
• [Presentation] ナノ磁性体の高周波応答について (2008)
  • Author(s): 山口 明啓、宮島 英紀, 他
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学(大阪)
  • Year and Date: 2008-03-23
• [Patent(Industrial Property Rights)] 微小磁性体複合強磁性共鳴を用いた小インダクタ (2008)
  • Inventor(s): 山口明啓, 宮島英紀, 東尾奈々, 元井桂一
  • Industrial Property Rights Holder: 慶應義塾大学
  • Industrial Property Number: 2008-233657
  • Filing Date: 2008-09-11