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	The role of rotatable anisotropy in the asymmetric magnetization reversal of exchange biased NiO/Ni bilayers
	Yang, P.Y. ; Song, C. ; Fan, B. ; Zeng, F. ; Pan, F.
	2010-10-12 ; 2010-10-12
关键词	Experimental/ antiferromagnetic materials coercive force ferromagnetic materials magnetic anisotropy magnetic domains magnetic hysteresis magnetic thin films magnetisation reversal nickel nickel compounds/ asymmetric magnetization reversal exchange biased bilayers vectorial vibrating sample magnetometer exchange field coercivity layer thickness hysteresis loops antiferromagnetic material ferromagnetic material magnetic anisotropy domain structures NiO-Ni/ A7570A Magnetic properties of monolayers and overlayers A7560E Magnetization curves, hysteresis, Barkhausen and related effects A7550E Antiferromagnetics A7550C Ferromagnetism of nonferrous metals and alloys A7530G Magnetic anisotropy A7570K Domain structure in magnetic films (magnetic bubbles)/ NiO-Ni/int NiO/int Ni/int O/int NiO/bin Ni/bin O/bin Ni/el
中文摘要	The angular dependence of asymmetric magnetization reversal in exchange biased NiO/Ni bilayers was investigated using a vectorial vibrating sample magnetometer. Different angular dependences of the exchange field, coercivity, and asymmetry were obtained by tuning the NiO layer thickness (t/sub NiO/). Comparing the experimental data with the theoretical calculations, we found that the asymmetric magnetization reversal of bilayers with larger t/sub NiO/ was dominated by competing uniaxial and unidirectional anisotropies, and an additional rotatable anisotropy was required in the simulation to correctly describe the magnetization reversal of bilayers with smaller t/sub NiO/. The irreversible magnetization switches of a large amount of antiferromagnetic grains in thin NiO layers are responsible for the rotatable anisotropy, which may also significantly affect the shape of the hysteresis loops and the range of angles with symmetric magnetization reversal.
语种	英语
出版者	American Institute of Physics ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78400]
专题	清华大学
推荐引用方式 GB/T 7714	Yang, P.Y.,Song, C.,Fan, B.,et al. The role of rotatable anisotropy in the asymmetric magnetization reversal of exchange biased NiO/Ni bilayers[J],2010, 2010.
APA	Yang, P.Y.,Song, C.,Fan, B.,Zeng, F.,&Pan, F..(2010).The role of rotatable anisotropy in the asymmetric magnetization reversal of exchange biased NiO/Ni bilayers..
MLA	Yang, P.Y.,et al."The role of rotatable anisotropy in the asymmetric magnetization reversal of exchange biased NiO/Ni bilayers".(2010).

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