Magnetic properties of three-layer superlattices and three-layer systems

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	Magnetic properties of three-layer superlattices and three-layer systems
	R. K. Qiu; Z. D. Zhang
	2002
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	14 期号:12 页码:3259-3274
摘要	By employing retarded Green functions, the spin-wave spectrum and the layer-sublatticc magnetization in Heisenberg ferrimagnetic three-layer superlattices and three-layer systems are calculated within the framework of the linear spin-wave approximation. The effects of the interlayer exchange constants and the intralayer exchange constants on the magnetic properties of the two systems are compared with those for the corresponding three-sublattice bulk ferrimagnets. It is found that all the differences between the magnetic properties of these systems originate from the differences between the exchange couplings in the three dimensions of the systems. The quantum correlations, such as the competition, cancellation, and transmission of the effects of the exchange couplings, are important for the magnetic properties of the systems. The asymmetry of the systems plays an important role in the zero-point quantum fluctuations and, correspondingly, in the layer-sublattice magnetizations of the layers.
部门归属	acad sinica, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. acad sinica, met res inst, int ctr mat phys, shenyang 110016, peoples r china.;qiu, rk (reprint author), acad sinica, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china;zdzhang@imr.ac.cn
关键词	Spin-waves Ferrimagnets 3-sublattice Ferromagnet Layers Modes
URL	查看原文
WOS记录号	WOS:000175333200023
引用统计	被引频次：13[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/321006/36397
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. K. Qiu,Z. D. Zhang. Magnetic properties of three-layer superlattices and three-layer systems[J]. Journal of Physics-Condensed Matter,2002,14(12):3259-3274.
APA	R. K. Qiu,&Z. D. Zhang.(2002).Magnetic properties of three-layer superlattices and three-layer systems.Journal of Physics-Condensed Matter,14(12),3259-3274.
MLA	R. K. Qiu,et al."Magnetic properties of three-layer superlattices and three-layer systems".Journal of Physics-Condensed Matter 14.12(2002):3259-3274.