Perpendicular magnetic anisotropy in 70 nm CoFe(2)O(4) thin films fabricated on SiO(2)/Si(100) by the sol-gel method

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	Perpendicular magnetic anisotropy in 70 nm CoFe(2)O(4) thin films fabricated on SiO(2)/Si(100) by the sol-gel method
	X. W. Wang; Y. Q. Zhang; H. Meng; Z. J. Wang; Z. D. Zhang
	2011
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	509 期号:29 页码:7803-7807
摘要	Cobalt ferrite CoFe(2)O(4) films were fabricated on SiO(2)/Si(1 0 0) by the sol-gel method. Films crystallized at/above 600 degrees C are stoichiometric as expected. With increase of the annealing temperature from 600 degrees C to 750 degrees C, the columnar grain size of CoFe(2)O(4) film increases from 13 nm to 50 nm, resulting in surface roughness increasing from 0.46 nm to 2.55 nm. Magnetic hysteresis loops in both in-plane and out-of-plane directions, at different annealing temperatures, indicate that the films annealed at 750 degrees C exhibit obvious perpendicular magnetic anisotropy. Simultaneously, with the annealing temperature increasing from 600 degrees C to 750 degrees C, the out of plane coercivity increases from 1 kOe to 2.4 kOe and the corresponding saturation magnetization increases from 200 emu/cm(3) to 283 emu/cm(3). In addition, all crystallized films exhibit cluster-like structured magnetic domains. (C) 2011 Elsevier B.V. All rights reserved.
部门归属	[zhang, y. q.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zhang, yq (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;yqzhang@imr.ac.cn
关键词	Cofe(2)o(4) Thin Films Sol-gel Method Magnetic Anisotropy High Coercivity Temperature Powders Route
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30752
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. W. Wang,Y. Q. Zhang,H. Meng,et al. Perpendicular magnetic anisotropy in 70 nm CoFe(2)O(4) thin films fabricated on SiO(2)/Si(100) by the sol-gel method[J]. Journal of Alloys and Compounds,2011,509(29):7803-7807.
APA	X. W. Wang,Y. Q. Zhang,H. Meng,Z. J. Wang,&Z. D. Zhang.(2011).Perpendicular magnetic anisotropy in 70 nm CoFe(2)O(4) thin films fabricated on SiO(2)/Si(100) by the sol-gel method.Journal of Alloys and Compounds,509(29),7803-7807.
MLA	X. W. Wang,et al."Perpendicular magnetic anisotropy in 70 nm CoFe(2)O(4) thin films fabricated on SiO(2)/Si(100) by the sol-gel method".Journal of Alloys and Compounds 509.29(2011):7803-7807.