Development of efficient magnetic refrigeration technique using pure spin current

• Project/Area Number: 22246003
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials science/Crystal engineering
• Research Institution: Kyushu University
• Principal Investigator: KIMURA Takashi 九州大学, 稲盛フロンティア研究センター, 教授 (80360535)
• Co-Investigator(Kenkyū-buntansha): TOGAWA Yoshihiko 大阪府立大学, 21世紀科学研究機構, 准教授 (00415241)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥41,470,000 (Direct Cost: ¥31,900,000、Indirect Cost: ¥9,570,000); Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2011: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000); Fiscal Year 2010: ¥31,980,000 (Direct Cost: ¥24,600,000、Indirect Cost: ¥7,380,000)
• Keywords: スピン注入 / 磁気冷凍 / スピントロニクス / 磁気熱量効果 / ナノエレクトロニクス

Research Abstract

By using efficient manipulation techniques of the pure spin current developed by the project leader, we develop a novel spin cooling device with manipulating the spin entropy of the magnetocaloric materials. The major activities are as follows.
1. Fabrication of high quality Gd nano wire
2. Detection of M-H curve of submicron Gd wire
3. Evaluation of spin absorption efficiency of Gd
4. Efficient spin absorption using transverse spin current
5. Reduction of thermoelectric voltage due to pure spin current injection.
The final result implies the realization of the spin cooling using pure spin current.

Research Products

• [Journal Article] Anomalous Nernst-Ettingshausen effect in nonlocal spin valve measurement under high-bias current injection (2013)
  • Author(s): S. Hu and T. Kimura
  • Journal Title: Physical Review B Volume: 87 Pages: 14424-14424
• [Journal Article] Anomalous Nernst-Ettingshausen effect in nonlocal spin valve measurement under high-bias current injection (2013)
  • Author(s): Shaojie Hu
  • Journal Title: Physical Review B Volume: 87 Issue: 1 Pages: 14424-14424
  • DOI: 10.1103/physrevb.87.014424
  • Peer Reviewed
• [Journal Article] Transport properties of pure spin currents in a polycrystalline Gd wire (2012)
  • Author(s): S. Nonoguchi, Y. Ando, S. Yakata, and T. Kimura
  • Journal Title: IEEE Trans. Magn. Volume: 47 Pages: 2750-2752
• [Journal Article] Electrical manipulation of spin polarization and generation of giant spin current using multi terminal spin injectors (2012)
  • Author(s): S. Nonoguchi, Y. Ando, S. Yakata, and T. Kimura
  • Journal Title: Journal of Applied Physics Volume: 111
• [Journal Article] Nonlocal spin transports in nanopillar-based lateral spin valve (2012)
  • Author(s): S. Nonoguchi, T. Nomura, and T. Kimura
  • Journal Title: Applied Physics Letters Volume: 100 Pages: 132401-132401
• [Journal Article] Longitudinal and transverse spin current absorptions in a lateral spin valve structure (2012)
  • Author(s): S. Nonoguchi, T. Nomura, and T. Kimura
  • Journal Title: Physical Review B Volume: 88 Pages: 104417-104417
• [Journal Article] Efficient inducement of bistable spin Hall effect using in-plane-magnetized V-shaped ferromagnetic wire (2012)
  • Author(s): T. Nomura, S. Nonoguchi, T. Kimura
  • Journal Title: Applied Physics Letters Volume: 101 Pages: 82403-82403
• [Journal Article] Large pure spin current generation in metallic nanostructures (2012)
  • Author(s): Saidur Bakaul
  • Journal Title: Applied Physics A Volume: 339 Issue: 2 Pages: 7495-7495
  • DOI: 10.1007/s00339-012-7495-0
  • Peer Reviewed
• [Journal Article] Efficient excitation and detection of standing spin wave in Permalloy film -Demonstration of spin wave resonator- (2012)
  • Author(s): K. Kiseki
  • Journal Title: Applied Physics Letters Volume: 101 Issue: 21 Pages: 212404-212404
  • DOI: 10.1063/1.4766918
  • Peer Reviewed
• [Journal Article] Ferromagnetic resonance in exchange-coupled NiFe/FeMn films and its control (2012)
  • Author(s): Shaojie Hu
  • Journal Title: IEEE Trans. on Magn. Volume: 48 Issue: 11 Pages: 2889-2891
  • DOI: 10.1109/tmag.2012.2201925
  • Peer Reviewed
• [Journal Article] Noise-induced Transition of Mutual Phase Synchronization in Coupled Spin Torque Nano Oscillators (2012)
  • Author(s): K. Nakada
  • Journal Title: IEEE Trans. on Magn. Volume: 48 Issue: 11 Pages: 4558-4561
  • DOI: 10.1109/tmag.2012.2201145
  • Peer Reviewed
• [Journal Article] Longitudinal and transverse spin current absorptions in a lateral spin valve structure (2012)
  • Author(s): S. Nonoguchi
  • Journal Title: Physical Review B Volume: 86 Issue: 10 Pages: 104417-104417
  • DOI: 10.1103/physrevb.86.104417
  • Peer Reviewed
• [Journal Article] Efficient inducement of bistable spin Hall effect using in-plane-magnetized V-shaped ferromagnetic wire (2012)
  • Author(s): T. Nomura
  • Journal Title: Applied Physics Letters Volume: 101 Issue: 8 Pages: 82403-82403
  • DOI: 10.1063/1.4747219
  • Peer Reviewed
• [Journal Article] Nonlocal spin transports in nanopillar-based lateral spin valve (2012)
  • Author(s): S. Nonoguchi
  • Journal Title: Applied Physics Letters Volume: 100 Issue: 13 Pages: 132401-132401
  • DOI: 10.1063/1.3698092
  • Peer Reviewed
• [Journal Article] Electrical manipulation of spin polarization and generation of giant spin current using multi terminal spin injectors (2012)
  • Author(s): 野々口誠二, 野村竜也, 安藤裕一郎, 木村崇
  • Journal Title: Journal of Applied Physics Volume: 111 Issue: 7
  • DOI: 10.1063/1.3672245
  • Peer Reviewed
• [Journal Article] Chirality control of magnetic vortex in a square Py dot using current-induced Oersted field (2012)
  • Author(s): 家形諭, 宮田真彦, 本多周太, 伊藤博介, 和田裕文, 木村崇
  • Journal Title: Applied Physics Letters Volume: 99 Issue: 24 Pages: 242507-242507
  • DOI: 10.1063/1.3669410
  • Peer Reviewed
• [Journal Article] Transport properties of pure spin currents in a polycrystalline Gd wire (2011)
  • Author(s): S.Nonoguchi, Y.Ando, et.al.
  • Journal Title: IEEE TRANSACTIONS on magnetics Volume: 47 Issue: 10 Pages: 2750-2752
  • DOI: 10.1109/tmag.2011.2158407
  • Peer Reviewed
• [Journal Article] Spin transport properties in polycrystalline Gd film and strip (2010)
  • Author(s): S. Nonoguchi, Y. Ando, Y.Togawa, T. Kimura
  • Journal Title: TENCON IEEE Region 10 Conference Proceedings 2010 Pages: 126-128
• [Journal Article] Spin transport properties in polycrystalline Gd film and strip (2010)
  • Author(s): 野々口誠二, 安藤裕一郎, 戸川欣彦, 木村崇
  • Journal Title: TENCON IEEE Region 10 Conference Proceedings Pages: 126-128
  • Peer Reviewed
• [Presentation] 非局所スピンバルブ測定におけベース信号の抑制 (2013)
  • Author(s): 野村竜也, 木村崇
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
• [Presentation] Seebeck voltage in lateral FM/NM hybrid nanostructure (2013)
  • Author(s): C. Mu, S. Hu and T. Kimura
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
• [Presentation] 非局所スピンバルブ測定におけるベース信号の抑制 (2013)
  • Author(s): 野村竜也
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
• [Presentation] Giant pure spin current generation in non-local lateral spin valve structure by using multi-terminal injectors (CoFe) (2013)
  • Author(s): Shaojie Hu
  • Organizer: 日本物理学会
  • Place of Presentation: 広島大学
• [Presentation] (2012)
  • Author(s): 木村 崇
  • Organizer: The 2nd ASRC International Workshop on Magnetic Materials and Nanostructures(招待講演)
  • Place of Presentation: 東海村
• [Presentation] Magnetic and transport properties of submicron Gd strip (2012)
  • Author(s): S. Nonoguchi, T. Nomura, M. Hara and T. Kimura
  • Organizer: Internatinal Conference on Magnetics
  • Place of Presentation: Busan, Korea
• [Presentation] Pure spin current injection into a Gd wire (2012)
  • Author(s): S. Nonoguchi, T. Nomura and T. Kimura
  • Organizer: Internatinal Conference on Magnetics
  • Place of Presentation: Busan, Koreas
• [Presentation] Improvement of generation efficiency of pure spin current using multi-terminal spin injection (2012)
  • Author(s): S. Hu and T. Kimura
  • Organizer: Internatinal Conference on Magnetics
  • Place of Presentation: Busan, Korea
• [Presentation] Generation of pure spin current using nano-pillar-based lateral spin valve (2012)
  • Author(s): S. Nonoguchi, T. Nomura and T. Kimura
  • Organizer: IEEE International Magnetics Conference
  • Place of Presentation: Vancouver, Canada
• [Presentation] Pure spin current generation using highly spin polarized Co2FeSi electrodes (2012)
  • Author(s): T. Kimura
  • Organizer: Internatinal Conference on Magnetics
  • Place of Presentation: Busan, Korea
• [Presentation] Pure spin current injection into a Gd wire (2012)
  • Author(s): S. Nonoguchi
  • Organizer: Internatinal Conference on Magnetics
  • Place of Presentation: Busan, Korea
• [Presentation] Detection of pure spin current using a nonlocal loop circuit (2012)
  • Author(s): T. Nomura
  • Organizer: IEEE International Magnetics Conference
  • Place of Presentation: Vancouver, Canada
• [Presentation] Noise-induced transition of mutual phase synchronization in spin torque nano oscillators (2012)
  • Author(s): K. Nakada
  • Organizer: IEEE International Magnetics Conference
  • Place of Presentation: Vancouver, Canada
• [Presentation] Efficient spin injection and detection of pure spin current in metallic system (2012)
  • Author(s): 木村崇
  • Organizer: The 2nd ASRC International Workshop on Magnetic Materials and Nanostructures
  • Place of Presentation: 東海村(招待講演)
• [Presentation] 純スピン流注入により誘導されるループ電流とその検出 (2011)
  • Author(s): 野々口誠二, 安藤裕一郎, 家形諭,木村崇
  • Organizer: 日本物理学会年次会
  • Place of Presentation: 新潟
  • Year and Date: 2011-03-24
• [Presentation] 金属接合における高効率スピン注入とスピン吸収, スピン流と熱効果の新現象(招待講演) (2011)
  • Author(s): 木村 崇
  • Place of Presentation: 仙台
• [Presentation] Generation of giant spin current using multi-terminal nonlocal spin injections (2011)
  • Author(s): 野々口誠二, 野村竜也, 安藤裕一郎, 木村 崇
  • Organizer: 56th Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Arizona
• [Presentation] Detection of a loop current created by a pure spin current (2011)
  • Author(s): 野村竜也, 野々口誠二,安藤裕一郎,木村 崇
  • Organizer: 56th Annual Conference on Magnetism and Magnetic Materials
  • Place of Presentation: Arizona
• [Presentation] 厚膜Py ナノドットにおける側面スピン吸収効果 (2011)
  • Author(s): 野々口誠二,野村竜也,安藤裕一郎,木村 崇
  • Organizer: 日本磁気学会
  • Place of Presentation: 新潟
• [Presentation] Pure spin current injection into polycrystalline Gd (2011)
  • Author(s): 野々口誠二, 安藤裕一郎, 家形諭, 木村崇
  • Organizer: SPINTECH6
  • Place of Presentation: 松江
• [Presentation] Efficient manipulations of pure spin curr ents using V-shape ferromagnetic wires (2011)
  • Author(s): 野々口誠二, 安藤裕一郎, 家形諭, 木村崇
  • Organizer: SPINTECH6
  • Place of Presentation: 松江
• [Presentation] Transport properties of pure spin currents in a polycrystalline Gd wire (2011)
  • Author(s): 野々口誠二, 家形諭, 安藤裕一郎, 木村崇
  • Organizer: INTERMAG 2011
  • Place of Presentation: 台北
• [Presentation] 金属接合における高効率スピン注入とスピン吸収 (2011)
  • Author(s): 木村崇
  • Organizer: スピン流と熱効果の新現象
  • Place of Presentation: 仙台(招待講演)
• [Presentation] 厚膜Pyナノドットにおける側面スピン吸収効果 (2011)
  • Author(s): 野々口誠二, 野村竜也, 安藤裕一郎, 木村崇
  • Organizer: 日本磁気学会
  • Place of Presentation: 新潟
• [Presentation] Pure spin current injection into polycrystalline Gd" (2011)
  • Author(s): 野々口誠二, 安藤裕一郎, 家形諭, 木村崇
  • Organizer: SPINTECH6
  • Place of Presentation: 松江
• [Presentation] Efficient manipulations of pure spin currents using V-shape ferromagnetic wires (2011)
  • Author(s): 野々口誠二, 安藤裕一郎, 家形論, 木村崇
  • Organizer: SPINTECH6
  • Place of Presentation: 松江
• [Presentation] Spin transport properties in polycrystalline Gd film and strip (2010)
  • Author(s): 野々口誠二, 安藤裕一郎, 戸川欣彦,木村崇
  • Organizer: IEEE TENCON2010
  • Place of Presentation: 福岡
  • Year and Date: 2010-11-22
• [Presentation] V 字型強磁性細線によるスピン注入と蓄積スピン方向の制御 (2010)
  • Author(s): 野々口誠二, 安藤裕一郎, 宮田真彦, 家形諭, 木村 崇
  • Organizer: 日本磁気学会学術講演会
  • Place of Presentation: つくば
  • Year and Date: 2010-09-04
• [Presentation] V字型強磁性細線によるスピン注入と蓄積スピン方向の制御 (2010)
  • Author(s): 野々口誠二, 安藤裕一郎, 宮田真彦, 家形諭、木村崇
  • Organizer: 日本磁気学会学術講演会
  • Place of Presentation: つくば
  • Year and Date: 2010-09-04
• [Presentation] Gd 細線への純スピン流注入と微細磁気冷凍素子への応用 (2010)
  • Author(s): 野々口誠二, 安藤裕一郎, 木村崇
  • Organizer: 日本真空学会
  • Place of Presentation: 福岡
  • Year and Date: 2010-06-12
• [Presentation] Gd細線への純スピン流注入と微細磁気冷凍素子への応用 (2010)
  • Author(s): 野々口誠二, 安藤裕一郎, 木村崇
  • Organizer: 日本真空学会
  • Place of Presentation: 福岡
  • Year and Date: 2010-06-12