A possible mechanism for quasi-two-dimensional ferromagnetism: The spectrum gap induced by s-d exchange interaction

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	A possible mechanism for quasi-two-dimensional ferromagnetism: The spectrum gap induced by s-d exchange interaction
	P. B. Zhao; X. D. Zhang; B. Z. Li; F. C. Pu
	1996
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	8 期号:23 页码:4157-4163
摘要	A quasi-two-dimensional magnetic system is studied in which magnetic atoms are confined in the two-dimensional plane but the conduction electrons are in fact three-dimensional. By virtue of spin-wave theory, we find that a spectrum gap can be formed at the bottom of the spin-wave spectrum, induced by the s-d exchange interaction between conduction electrons and magnetic localized electrons. Thus, a new possible mechanism is proposed for two-dimensional ferromagnetic order at finite temperature.
部门归属	chinese ctr adv sci & technol,world lab,beijing 100080,peoples r china. acad sinica,int ctr mat phys,shenyang 110015,peoples r china.;zhao, pb (reprint author), acad sinica,inst phys,pob 603-99,beijing 100080,peoples r china
关键词	Ultrathin Films Magnetoresistance Superlattices Magnetization Anisotropy Magnetism
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38490
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. B. Zhao,X. D. Zhang,B. Z. Li,et al. A possible mechanism for quasi-two-dimensional ferromagnetism: The spectrum gap induced by s-d exchange interaction[J]. Journal of Physics-Condensed Matter,1996,8(23):4157-4163.
APA	P. B. Zhao,X. D. Zhang,B. Z. Li,&F. C. Pu.(1996).A possible mechanism for quasi-two-dimensional ferromagnetism: The spectrum gap induced by s-d exchange interaction.Journal of Physics-Condensed Matter,8(23),4157-4163.
MLA	P. B. Zhao,et al."A possible mechanism for quasi-two-dimensional ferromagnetism: The spectrum gap induced by s-d exchange interaction".Journal of Physics-Condensed Matter 8.23(1996):4157-4163.