中国物理B ›› 2018, Vol. 27 ›› Issue (4): 47503-047503.doi: 10.1088/1674-1056/27/4/047503

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

First-order reversal curve investigated magnetization switching in Pd/Co/Pd wedge film

Yan Li(李岩), Wei He(何为), Rui Sun(孙瑞), Zi-Zhao Gong(弓子召), Na Li(李娜), Qeemat Gul, Xiang-Qun Zhang(张向群), Zhao-Hua Cheng(成昭华)   

  1. 1. State Key Laboratory of Magnetism and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2017-12-07 修回日期:2018-01-09 出版日期:2018-04-05 发布日期:2018-04-05
  • 通讯作者: Wei He, Zhao-Hua Cheng E-mail:hewei@iphy.ac.cn;zhcheng@iphy.ac.cn
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant Nos. 2015CB921403 and 2016YFA0300701) and the National Natural Science Foundation of China (Grant Nos. 51427801, 11374350, and 51671212).

First-order reversal curve investigated magnetization switching in Pd/Co/Pd wedge film

Yan Li(李岩)1,2, Wei He(何为)1, Rui Sun(孙瑞)1,2, Zi-Zhao Gong(弓子召)1,2, Na Li(李娜)1,2, Qeemat Gul1,2, Xiang-Qun Zhang(张向群)1, Zhao-Hua Cheng(成昭华)1,2   

  1. 1. State Key Laboratory of Magnetism and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-12-07 Revised:2018-01-09 Online:2018-04-05 Published:2018-04-05
  • Contact: Wei He, Zhao-Hua Cheng E-mail:hewei@iphy.ac.cn;zhcheng@iphy.ac.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant Nos. 2015CB921403 and 2016YFA0300701) and the National Natural Science Foundation of China (Grant Nos. 51427801, 11374350, and 51671212).

摘要:

The magnetization switching plays an essential role in spintronic devices. In this study, a Pd(3 nm)/Co(0.14-1.68 nm)/Pd(5 nm) wedge film is deposited on an MgO (111) substrate by molecular beam epitaxy. We investigate the polar magneto-optical Kerr effect (MOKE) and carry out the first-order reversal curve (FORC) measurements. For the wedge system, it is observed that the Co thickness could drive the spin reorientation transition (SRT) from out-of-plane to in-plane. Meanwhile, we find the different types of magnetization switchings in the continuous SRT process, which can originate from the formation of different magnetic compositions. Our work provides the possibility of tuning the interfacial effect, and paves the way to analyzing magnetization switching.

关键词: wedge film, MOKE, FORC, magnetization switching

Abstract:

The magnetization switching plays an essential role in spintronic devices. In this study, a Pd(3 nm)/Co(0.14-1.68 nm)/Pd(5 nm) wedge film is deposited on an MgO (111) substrate by molecular beam epitaxy. We investigate the polar magneto-optical Kerr effect (MOKE) and carry out the first-order reversal curve (FORC) measurements. For the wedge system, it is observed that the Co thickness could drive the spin reorientation transition (SRT) from out-of-plane to in-plane. Meanwhile, we find the different types of magnetization switchings in the continuous SRT process, which can originate from the formation of different magnetic compositions. Our work provides the possibility of tuning the interfacial effect, and paves the way to analyzing magnetization switching.

Key words: wedge film, MOKE, FORC, magnetization switching

中图分类号:  (Domain effects, magnetization curves, and hysteresis)

  • 75.60.-d
75.78.Jp (Ultrafast magnetization dynamics and switching) 75.70.Ak (Magnetic properties of monolayers and thin films)