Hysteresis and anisotropy in ultrathin Fe/Si(001) films

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	Hysteresis and anisotropy in ultrathin Fe/Si(001) films
	Ye, J ; He, W ; Wu, Q ; Hu, B ; Tang, J ; Zhang, XQ ; Chen, ZY ; Cheng, ZH
刊名	APPLIED PHYSICS LETTERS
	2014
卷号	105 期号:10
ISSN号	0003-6951
通讯作者	Chen, ZY (reprint author), Beihang Univ, Dept Phys, Beijing 100191, Peoples R China.
中文摘要	It is challenging to investigate the magnetic anisotropy of Fe/Si(001) film in the case a limited magnetic field strength, when both coherent rotation and domain wall displacement coexist in the magnetization reversal process. Owing to the domain wall displacement, the magnetization reversal switching field is far lower than the magnetic anisotropy field, and, consequently, only the magnetization reversal process near easy axis can be treated as coherent rotation. Here, we record the slope of the magnetic torque curve of an iron film grown on a Si(001) substrate measured near the easy axis by anisotropic magnetoresistance (AMR) to separate the coherent rotation of magnetization reversal process from domain wall displacement. Furthermore, the magnitudes of various magnetic anisotropy constants were derived from the magnetic torque curves. Our work suggests that the AMR at low fields can clearly separate the detailed contributions of various magnetic anisotropies when domain wall displacement existed in Fe(001) ultrathin film. We also report on the hysteresis behavior of such films as measured by magneto-optic Kerr effect. (C) 2014 AIP Publishing LLC.
资助信息	National Basic Research Program of China (973 program) [2011CB921801, 2012CB933102]; National Natural Sciences Foundation of China [11374350, 11034004, 11274361, 11274033, 61227902]; Research Fund for the Doctoral Program of Higher Education of China [20131102130005]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/58890]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Ye, J,He, W,Wu, Q,et al. Hysteresis and anisotropy in ultrathin Fe/Si(001) films[J]. APPLIED PHYSICS LETTERS,2014,105(10).
APA	Ye, J.,He, W.,Wu, Q.,Hu, B.,Tang, J.,...&Cheng, ZH.(2014).Hysteresis and anisotropy in ultrathin Fe/Si(001) films.APPLIED PHYSICS LETTERS,105(10).
MLA	Ye, J,et al."Hysteresis and anisotropy in ultrathin Fe/Si(001) films".APPLIED PHYSICS LETTERS 105.10(2014).