Exchange coupling and magnetic properties of Sm-Co/Fe56Co35 multi-layered films

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	Exchange coupling and magnetic properties of Sm-Co/Fe56Co35 multi-layered films
	C. Y. You; C. J. Yang; Z. D. Zhang; J. S. Han; W. Liu; X. K. Sun
	2003
发表期刊	Journal of Physics D-Applied Physics
ISSN	0022-3727
卷号	36 期号:5 页码:423-427
摘要	A detailed analysis of exchange coupling are made for sputtered [Sm-Co(21 nm)/Fe65Co35 or Co(x nm)](10) (x = 5 or 7) multi-layered films. After annealing, a main phase obtained within the films is Sm2Co17. Transmission electron microscopic observation illustrates that the film exhibits a nano-particle structure and no multi-layer structure forms after annealing. deltam measurements and remanence magnetization curves with applying field show that the increase in coercivity might be due to improving pinning effectiveness by decreasing Fe-Co layer thickness or changing from Fe-Co to Co layer. The recoil curves are analysed in detail for [Sm-Co(21 nm)/Fe65Co35(x nm)](10) multi-layered films, which shows that the recoil susceptibility of the [Sm-Co(21 nm)/Fe65Co35(5 nm)](10) film is lower and changes slowly. These results can be understood in terms of a pinning-type mechanism of coercivity and the exchange coupling between grains of hard and soft magnetic phases.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. res inst ind sci & technol, electromagnet mat lab, pohang 790330, south korea.;you, cy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;cyyou@imr.ac.cn
关键词	Thin-films Permanent-magnets Sm-co Transformation Coercivity Anisotropy Noise Media Fe
URL	查看原文
WOS记录号	WOS:000181815700003
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36135
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Y. You,C. J. Yang,Z. D. Zhang,et al. Exchange coupling and magnetic properties of Sm-Co/Fe56Co35 multi-layered films[J]. Journal of Physics D-Applied Physics,2003,36(5):423-427.
APA	C. Y. You,C. J. Yang,Z. D. Zhang,J. S. Han,W. Liu,&X. K. Sun.(2003).Exchange coupling and magnetic properties of Sm-Co/Fe56Co35 multi-layered films.Journal of Physics D-Applied Physics,36(5),423-427.
MLA	C. Y. You,et al."Exchange coupling and magnetic properties of Sm-Co/Fe56Co35 multi-layered films".Journal of Physics D-Applied Physics 36.5(2003):423-427.