中国物理B ›› 2022, Vol. 31 ›› Issue (7): 77502-077502.doi: 10.1088/1674-1056/ac43ab

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Voltage control magnetism and ferromagnetic resonance in an Fe19Ni81/PMN-PT heterostructure by strain

Jun Ren(任军)1, Junming Li(李军明)1, Sheng Zhang(张胜)1, Jun Li(李骏)1, Wenxia Su(苏文霞)1, Dunhui Wang(王敦辉)1,2,†, Qingqi Cao(曹庆琪)1, and Youwei Du(都有为)1   

  1. 1 National Laboratory of Solid State Microstructures and Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China;
    2 Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China
  • 收稿日期:2021-11-04 修回日期:2021-12-10 接受日期:2021-12-16 出版日期:2022-06-09 发布日期:2022-07-19
  • 通讯作者: Dunhui Wang E-mail:wangdh@hdu.edu.cn

Voltage control magnetism and ferromagnetic resonance in an Fe19Ni81/PMN-PT heterostructure by strain

Jun Ren(任军)1, Junming Li(李军明)1, Sheng Zhang(张胜)1, Jun Li(李骏)1, Wenxia Su(苏文霞)1, Dunhui Wang(王敦辉)1,2,†, Qingqi Cao(曹庆琪)1, and Youwei Du(都有为)1   

  1. 1 National Laboratory of Solid State Microstructures and Jiangsu Key Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China;
    2 Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China
  • Received:2021-11-04 Revised:2021-12-10 Accepted:2021-12-16 Online:2022-06-09 Published:2022-07-19
  • Contact: Dunhui Wang E-mail:wangdh@hdu.edu.cn

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摘要： Voltage control magnetism has been widely studied due to its potential applications in the next generation of information technology. PMN-PT, as a single crystal ferroelectric substrate, has been widely used in the study of voltage control magnetism because of its excellent piezoelectric properties. However, most of the research based on PMN-PT only studies the influence of a single tensile (or compressive) stress on the magnetic properties due to the asymmetry of strain. In this work, we show the effect of different strains on the magnetic anisotropy of an Fe19Ni81/(011) PMN-PT heterojunction. More importantly, the (011) cut PMN-PT generates non-volatile strain, which provides an advantage when investigating the voltage manipulation of RF/microwave magnetic devices. As a result, a ferromagnetic resonance field tunability of 70 Oe is induced in our sample by the non-volatile strain. Our results provide new possibilities for novel voltage adjustable RF/microwave magnetic devices and spintronic devices.

关键词: voltage control magnetism, magnetoelectric coupling, magnetic anisotropy, ferromagnetic resonance

Abstract: Voltage control magnetism has been widely studied due to its potential applications in the next generation of information technology. PMN-PT, as a single crystal ferroelectric substrate, has been widely used in the study of voltage control magnetism because of its excellent piezoelectric properties. However, most of the research based on PMN-PT only studies the influence of a single tensile (or compressive) stress on the magnetic properties due to the asymmetry of strain. In this work, we show the effect of different strains on the magnetic anisotropy of an Fe19Ni81/(011) PMN-PT heterojunction. More importantly, the (011) cut PMN-PT generates non-volatile strain, which provides an advantage when investigating the voltage manipulation of RF/microwave magnetic devices. As a result, a ferromagnetic resonance field tunability of 70 Oe is induced in our sample by the non-volatile strain. Our results provide new possibilities for novel voltage adjustable RF/microwave magnetic devices and spintronic devices.

Key words: voltage control magnetism, magnetoelectric coupling, magnetic anisotropy, ferromagnetic resonance

中图分类号:  (Magnetoelectric effects, multiferroics)

  • 75.85.+t
75.30.Gw (Magnetic anisotropy) 75.70.-i (Magnetic properties of thin films, surfaces, and interfaces)