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Chin. Phys. B, 2018, Vol. 27(4): 047503    DOI: 10.1088/1674-1056/27/4/047503

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. 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

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.

Keywords:  wedge film      MOKE      FORC      magnetization switching  
Received:  07 December 2017      Revised:  09 January 2018      Accepted manuscript online: 
PACS:  75.60.-d (Domain effects, magnetization curves, and hysteresis)  
  75.78.Jp (Ultrafast magnetization dynamics and switching)  
  75.70.Ak (Magnetic properties of monolayers and thin films)  

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).

Corresponding Authors:  Wei He, Zhao-Hua Cheng     E-mail:;

Cite this article: 

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) First-order reversal curve investigated magnetization switching in Pd/Co/Pd wedge film 2018 Chin. Phys. B 27 047503

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