Field-induced magnetic transition in cobalt-ferrite

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	Field-induced magnetic transition in cobalt-ferrite
	M. Kriegisch; W. J. Ren; R. Sato-Turtelli; H. Muller; R. Grossinger; Z. D. Zhang
	2012
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	111 期号:7
摘要	We present magnetostriction and magnetization measurements of a cobalt ferrite (Co0.8Fe2.2O4) single crystal. We observe unusual behavior in the magnetic hard axis of the single crystal which manifests in a jump of the magnetization curve at a critical field. This first order magnetization process (FOMP), which is explained as an anisotropy-driven transition, is visible at temperatures lower than 150 K. By analyzing the anisotropy constants, we found that the higher order anisotropy constant K-2 dominates the anisotropy energy. In the magnetostriction measurements, the FOMP is clearly visible as a huge jump in the [111] direction, which can be explained by means of a geometric model. (C) 2012 American Institute of Physics. [doi:10.1063/1.3671778]
部门归属	[kriegisch, martin; sato-turtelli, reiko; mueller, herbert; groessinger, roland] vienna univ technol, inst solid state phys, a-1040 vienna, austria. [ren, weijun; zhang, zhidong] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [ren, weijun; zhang, zhidong] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;kriegisch, m (reprint author), vienna univ technol, inst solid state phys, wiedner hauptstr 8-10,e138, a-1040 vienna, austria.;kriegisch@ifp.tuwien.ac.at
关键词	Single-crystals Anisotropy Tm Sm
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60035
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Kriegisch,W. J. Ren,R. Sato-Turtelli,et al. Field-induced magnetic transition in cobalt-ferrite[J]. Journal of Applied Physics,2012,111(7).
APA	M. Kriegisch,W. J. Ren,R. Sato-Turtelli,H. Muller,R. Grossinger,&Z. D. Zhang.(2012).Field-induced magnetic transition in cobalt-ferrite.Journal of Applied Physics,111(7).
MLA	M. Kriegisch,et al."Field-induced magnetic transition in cobalt-ferrite".Journal of Applied Physics 111.7(2012).