Microscopic origin of anomalous Nernst effect in perpendicularly magnetized thin films

• Project/Area Number: 24656002
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Applied materials science/Crystal engineering
• Research Institution: Tohoku University
• Principal Investigator: MIZUGUCHI MASAKI 東北大学, 金属材料研究所, 准教授 (50397759)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 磁性 / スピントロニクス / 熱流磁気効果 / 熱磁気効果

Research Abstract

This research aimed to clarify the physical mechanism of anomalous Nernst effect and to demonstrate an application of the effect to thermoelectric conversion devices. Magnetic anisotropy dependence and temperature dependence of anomalous Nernst effect were precisely investigated. The thermopile device including FePt wires enhanced the anomalous Nernst voltage effectively, which paves the way for realizing novel thermoelectric applications employing the anomalous Nernst effect.

Research Products

• [Journal Article] Anomalous Nernst Effect in L1_0-FePt/MnGa Thermopiles for New Thermoelectric Applications (2013)
  • Author(s): Y. Sakuraba, K. Hasegawa, M. Mizuguchi, T. Kubota, S. Mizukami, T. Miyazaki, and K. Takanashi
  • Journal Title: Applied Physics Express Volume: 6 Issue: 3 Pages: 033003-033003
  • DOI: 10.7567/apex.6.033003
  • NAID: 10031159842
  • Peer Reviewed
• [Journal Article] Anomalous Nernst effect in an L10-ordered epitaxial FePt thin film (2012)
  • Author(s): M. Mizuguchi
  • Journal Title: Applied Physics Express Volume: 5 Issue: 9 Pages: 093002-093002
  • DOI: 10.1143/apex.5.093002
  • Peer Reviewed
• [Presentation] Thermomagnetic effects in ferromagnetic metallic thin films and their application (2014)
  • Author(s): M. Miziuguchi, Y. Sakuraba, and K. Takanashi
  • Organizer: Energy, Materials and Nanotechnology (EMN) Spring Meeting 2014
  • Place of Presentation: Las Vegas (USA)
  • Year and Date: 2014-03-02
  • Invited
• [Presentation] Thermomagnetic effects in ferromagnetic metallic thin films and their application (2014)
  • Author(s): M. Miziuguchi, Y. Sakuraba, and K. Takanashi
  • Organizer: Energy, Materials and Nanotechnology (EMN) Spring Meeting 2014
  • Place of Presentation: Las Vegas, USA
  • Invited
• [Presentation] 強磁性金属薄膜における熱磁気効果 (2013)
  • Author(s): 水口将輝、長谷川浩太、桜庭裕弥、内田健一、齋藤英治、窪田崇秀、水上成美、宮﨑照宣、高梨弘毅
  • Organizer: 日本磁気学会第193回研究会/第47回スピンエレクトロニクス専門研究会
  • Place of Presentation: 東京(日本)
  • Year and Date: 2013-12-17
  • Invited
• [Presentation] 垂直磁化金属薄膜における異常ネルンスト効果の温度依存性 (2013)
  • Author(s): 水口将輝、長谷川浩太、桜庭裕弥、内田健一、齋藤英治、高梨弘毅
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島(日本)
  • Year and Date: 2013-09-26
• [Presentation] 強磁性規則合金における異常ネルンスト効果と熱電応用 (2013)
  • Author(s): 水口将輝、長谷川浩太、桜庭裕弥、高梨弘毅
  • Organizer: 日本熱電学会第17回研究会
  • Place of Presentation: 東京(日本)
  • Year and Date: 2013-08-27
  • Invited
• [Presentation] Anomalous Nernst and Hall effects in ferromagnetic metallic thin films with perpendicular magnetization (2013)
  • Author(s): M. Miziuguchi, K. Hasegawa, Y. Sakuraba, T. Kamada, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: The 8th International Symposium on Metallic Multilayers (MML2013)
  • Place of Presentation: Kyoto (Japan)
  • Year and Date: 2013-05-23
• [Presentation] Anomalous Nernst and Hall effects in ferromagnetic metallic thin films with perpendicular magnetization (2013)
  • Author(s): M. Miziuguchi, K. Hasegawa, Y. Sakuraba, T. Kamada, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: The 8th International Symposium on Metallic Multilayers (MML2013)
  • Place of Presentation: Kyoto
• [Presentation] 強磁性規則合金における異常ネルンスト効果と熱電応用 (2013)
  • Author(s): 水口将輝、長谷川浩太、桜庭裕弥、高梨弘毅
  • Organizer: 日本熱電学会第17回研究会
  • Place of Presentation: 東京
  • Invited
• [Presentation] 垂直磁化金属薄膜における異常ネルンスト効果の温度依存性 (2013)
  • Author(s): 水口将輝、長谷川浩太、桜庭裕弥、内田健一、齋藤英治、高梨弘毅
  • Organizer: 日本物理学会 2013年秋季大会
  • Place of Presentation: 徳島
• [Presentation] 強磁性金属薄膜における熱磁気効果 (2013)
  • Author(s): 水口将輝、長谷川浩太、桜庭裕弥、内田健一、齋藤英治、窪田崇秀、水上成美、宮﨑照宣、高梨弘毅
  • Organizer: 日本磁気学会 第193回研究会／第47回スピンエレクトロニクス専門研究会
  • Place of Presentation: 東京
  • Invited
• [Presentation] Anomalous Nernst effect for thermoelectric applications (2012)
  • Author(s): K. Hasegawa, Y. Sakuraba, M. Mizuguchi, T. Kubota, S. Mizukami, T. Kojima, T. Kamada, T. Miyazaki, and K. Takanashi
  • Organizer: International Conference of the Asian Union of Magnetics Societies (ICAUMS 2012)
  • Place of Presentation: Nara (Japan)
  • Year and Date: 2012-10-04
• [Presentation] Systematic investigation of anomalous Nernst and Hall effects in L1_0-FePt films (2012)
  • Author(s): K. Hasegawa, M. Mizuguchi, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: International Union of Materials Research Societies- International Conference on Electronic Materials 2012 (IUMRS-ICEM 2012)
  • Place of Presentation: Yokohama (Japan)
  • Year and Date: 2012-09-24
• [Presentation] Thermomagnetic effects in perpendicularly magnetized epitaxial FePt thin films (2012)
  • Author(s): K. Hasegawa, M. Mizuguchi, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: The 19th International Confernece on Magnetism (ICM 2012)
  • Place of Presentation: Busan (Korea)
  • Year and Date: 2012-07-12
• [Presentation] L1_0-ordered alloy as a material for spintronics (2012)
  • Author(s): M. Mizuguchi, K. Hasegawa, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: 4th International Workshop on Spin Caloritronics
  • Place of Presentation: Sendai (Japan)
  • Year and Date: 2012-06-04
  • Invited
• [Presentation] Anomalous Nernst and Hall effects in perpendicularly magnetized epitaxial FePt thin films (2012)
  • Author(s): M. Mizuguchi, K. Hasegawa, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: IEEE International Magnetics Conference (INTERMAG 2012)
  • Place of Presentation: Vancouver (Canada)
  • Year and Date: 2012-05-08
• [Presentation] Anomalous Nernst and Hall effects in perpendicularly magnetized epitaxial FePt thin films (2012)
  • Author(s): M. Mizuguchi, K. Hasegawa, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: IEEE International Magnetics Conference (INTERMAG 2012)
  • Place of Presentation: Vancouver, Canada
• [Presentation] Thermomagnetic effects in perpendicularly magnetized epitaxial FePt thin films (2012)
  • Author(s): M. Mizuguchi, K. Hasegawa, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: 4th International Workshop on Spin Caloritronics
  • Place of Presentation: Sendai, Japan
  • Invited
• [Presentation] Thickness and magnetic anisotropy dependence of anomalous Nernst effect in L10-FePt films (2012)
  • Author(s): K. Hasegawa, M. Mizuguchi, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: The 19th International Confernece on Magnetism (ICM 2012)
  • Place of Presentation: Busan, Korea
• [Presentation] Systematic investigation of anomalous Nernst and Hall effects in L10-FePt films (2012)
  • Author(s): K. Hasegawa, M. Mizuguchi, K. Uchida, E. Saitoh, and K. Takanashi
  • Organizer: International Union of Materials Research Societies-International Conference on Electronic Materials 2012 (IUMRS-ICEM 2012)
  • Place of Presentation: Yokohama, Japan
• [Presentation] Anomalous Nernst effect for thermoelectric applications (2012)
  • Author(s): K. Hasegawa, Y. Sakuraba, M. Mizuguchi, T. Kubota, S. Mizukami, T. Kojima, T. Kamada, T. Miyazaki, and K. Takanashi
  • Organizer: International Conference of the Asian Union of Magnetics Societies (ICAUMS 2012)
  • Place of Presentation: Nara, Japan
• [Patent(Industrial Property Rights)] 熱電発電デバイス (2012)
  • Inventor(s): 桜庭裕弥, 長谷川浩太, 水口将輝, 高梨弘毅
  • Industrial Property Rights Holder: 東北大学
  • Industrial Property Rights Type: 特許
  • Filing Date: 2012-09-28
• [Patent(Industrial Property Rights)] 熱電発電デバイス (2012)
  • Inventor(s): 桜庭裕弥、長谷川浩太、水口将輝、高梨弘毅
  • Industrial Property Rights Holder: 東北大学
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 2012-215334
  • Filing Date: 2012-09-28