Magnetic behavior of thin rare-earth films

被引：10

作者：

Mello, VD ^{[1
]}

Carriço, AS ^{[1
]}

Almeida, NS ^{[1
]}

机构：

[1] Univ Fed Rio Grande Norte, Dept Fis Teor & Expt, BR-59072970 Natal, RN, Brazil

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.59.6979

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider a thin rare-earth film with the c axis perpendicular to the surface, to study its nonuniform magnetic structure induced by the lower coordination near the surfaces. The influence of a de magnetic field, applied perpendicular to the c axis, on the equilibrium configurations is also investigated. The spin-wave frequencies, in the q=0 limit, are calculated as a function of the strength of the external de field. We use the bulk parameters of dysprosium and holmium to obtain the external field dependence of the equilibrium configuration, magnetization, and the lowest spin-wave modes of 30-monolayer-thick films. [S0163-1829(99)10209-1].

引用

页码：6979 / 6983

页数：5

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