SWITCHING IN SINGLE-DOMAIN NANOSTRUCTURES AT FINITE TEMPERATURES

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	SWITCHING IN SINGLE-DOMAIN NANOSTRUCTURES AT FINITE TEMPERATURES
	S. T. Chui ; D. C. Tian
刊名	Journal of Applied Physics
	1995
卷号	78 期号:6 页码:3965-3979
关键词	magnetization reversal particles
ISSN号	0021-8979
中文摘要	We study the finite temperature magnetization reversal of single domain nanostructures (particles and wires) of different materials with Monte Carlo and analytic techniques. The temperature, angular, and shape dependences of the switching field are calculated. For large structure diameters, there are different reversal mechanisms at different orientations of the external field. For small structure diameters growth usually starts with the nucleation and a subsequent depinning of domain walls at the end(s) of the structure. The nucleation energy of the domain wall in a magnetic field approaches zero near the coherent rotation limit at small aspect ratios and at fields less than the coherent rotation limit at large aspect ratios. As the domain wall energy approaches zero the domain wall width can remain finite. For small diameters there is a significant temperature dependence in the coercive field. For structures whose easy crystalline anisotropy axis is not along the major axis, a variety of switching scenario is observed. (C) 1995 American Institute of Physics.
原文出处	://WOS:A1995RU95300061
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/38544]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	S. T. Chui,D. C. Tian. SWITCHING IN SINGLE-DOMAIN NANOSTRUCTURES AT FINITE TEMPERATURES[J]. Journal of Applied Physics,1995,78(6):3965-3979.
APA	S. T. Chui,&D. C. Tian.(1995).SWITCHING IN SINGLE-DOMAIN NANOSTRUCTURES AT FINITE TEMPERATURES.Journal of Applied Physics,78(6),3965-3979.
MLA	S. T. Chui,et al."SWITCHING IN SINGLE-DOMAIN NANOSTRUCTURES AT FINITE TEMPERATURES".Journal of Applied Physics 78.6(1995):3965-3979.