Magnetization reversal of Fe ultrathin film on Cu(100)
He Wei(何为), Zhan Qing-Feng(詹清峰), Wang De-Yong(王得勇), Chen Li-Jun(陈立军), and Cheng Zhao-Hua(成昭华)†
State Key Laboratory of Magnetism and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
Abstract The magnetization reversal of Fe/Cu(100) ultrathin films grown at room temperature is investigated by using an in situ magneto-optical Kerr effect polarimeter with a magnet that can rotate in a plane of incidence. There occur spin reorientation transitions from out-of-plane to in-plane magnetizations in 8 and 12 monolayers (ML) thick iron films. The coercive fields are observed to be proportional to the reciprocal of the cosine with respect to the easy axis, suggesting that the domain-wall displacement plays a main role in the magnetization reversal process.
Received: 17 December 2007
Revised: 20 January 2008
Accepted manuscript online:
Fund: Project
supported by the State Key Development Program for Basic Research of
China (Grant No 2001CB610605) and the National Natural Science
Foundation of China (Grant No 10774179).
Cite this article:
He Wei(何为), Zhan Qing-Feng(詹清峰), Wang De-Yong(王得勇), Chen Li-Jun(陈立军), and Cheng Zhao-Hua(成昭华) Magnetization reversal of Fe ultrathin film on Cu(100) 2008 Chin. Phys. B 17 1902
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