Interlayer coupling in magnetic superlattices with electron density inhomogeneities

被引:0
|
作者
Gruhn, W [1 ]
Bak, Z [1 ]
机构
[1] Pedag Univ, Inst Phys, PL-42200 Czestochowa, Poland
来源
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 2004年 / 241卷 / 01期
关键词
D O I
10.1002/pssb.200301905
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We discuss the influence of spatial inhomogeneities of the free electron density on the magnetic interaction between magnetic layers of the superlattice, mediated across nonmagnetic, metallic spacer. Using the modified total energy approach, we prove that the TM or RE superlattices the additional scattering of free electrons on magnetic ion multipole moment increases the ferroquadrupolar biquadratic coupling between magnetic layers. It is shown also that the nonuniform free electron density generates contribution to the interlayer coupling being of the Dzialoshinsky-Moriya type.
引用
收藏
页码:183 / 188
页数:6
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