中国物理B ›› 2019, Vol. 28 ›› Issue (8): 88504-088504.doi: 10.1088/1674-1056/28/8/088504

所属专题： Virtual Special Topic — Magnetism and Magnetic Materials

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Spin transport in antiferromagnetic insulators

Zhiyong Qiu(邱志勇), Dazhi Hou(侯达之)   

  1. 1 Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams(Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China;
    2 WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
  • 收稿日期:2019-03-15 修回日期:2019-06-09 出版日期:2019-08-05 发布日期:2019-08-05
  • 通讯作者: Zhiyong Qiu E-mail:qiuzy@dlut.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11874098), LiaoNing Revitalization Talents Program (Grant No. XLYC1807156), and the Fundamental Research Funds for the Central Universities (Grant No. DUT17RC(3)073).

Spin transport in antiferromagnetic insulators

Zhiyong Qiu(邱志勇)1, Dazhi Hou(侯达之)2   

  1. 1 Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams(Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China;
    2 WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
  • Received:2019-03-15 Revised:2019-06-09 Online:2019-08-05 Published:2019-08-05
  • Contact: Zhiyong Qiu E-mail:qiuzy@dlut.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11874098), LiaoNing Revitalization Talents Program (Grant No. XLYC1807156), and the Fundamental Research Funds for the Central Universities (Grant No. DUT17RC(3)073).

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摘要： Electrical spin, which is the key element of spintronics, has been regarded as a powerful substitute for the electrical charge in the next generation of information technology, in which spin plays the role of the carrier of information and/or energy in a similar way to the electrical charge in electronics. Spin-transport phenomena in different materials are central topics of spintronics. Unlike electrical charge, spin transport does not depend on electron motion, particularly spin can be transported in insulators without accompanying Joule heating. Therefore, insulators are considered to be ideal materials for spin conductors, in which magnetic insulators are the most compelling systems. Recently, we experimentally studied and theoretically discussed spin transport in various antiferromagnetic systems and identified spin susceptibility and the Néel vector as the most important factors for spin transport in antiferromagnetic systems. Herein, we summarize our experimental results, physical nature, and puzzles unknown. Further challenges and potential applications are also discussed.

关键词: spintronics, spin wave, antiferromagnetics, spin transport

Abstract: Electrical spin, which is the key element of spintronics, has been regarded as a powerful substitute for the electrical charge in the next generation of information technology, in which spin plays the role of the carrier of information and/or energy in a similar way to the electrical charge in electronics. Spin-transport phenomena in different materials are central topics of spintronics. Unlike electrical charge, spin transport does not depend on electron motion, particularly spin can be transported in insulators without accompanying Joule heating. Therefore, insulators are considered to be ideal materials for spin conductors, in which magnetic insulators are the most compelling systems. Recently, we experimentally studied and theoretically discussed spin transport in various antiferromagnetic systems and identified spin susceptibility and the Néel vector as the most important factors for spin transport in antiferromagnetic systems. Herein, we summarize our experimental results, physical nature, and puzzles unknown. Further challenges and potential applications are also discussed.

Key words: spintronics, spin wave, antiferromagnetics, spin transport

中图分类号:  (Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)

  • 85.75.-d
76.50.+g (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance) 75.50.Ee (Antiferromagnetics) 75.76.+j (Spin transport effects)