Inhomogeneous splitting of impurity-spin energy levels in mesoscopic wires

被引：20

作者：

Fomin, VM

Gladilin, VN

Devreese, JT

Van Haesendonck, C

Neuttiens, G

机构：

[1] Univ Instelling Antwerp, Dept Nat Kunde, B-2610 Antwerp, Belgium

[2] Katholieke Univ Leuven, Vaste Stof Fys Magnetisme Lab, B-3001 Louvain, Belgium

[3] State Univ Moldova, Dept Theoret Phys, Kishinev 2009, Moldova

[4] Univ Antwerp, Ruca, B-2020 Antwerp, Belgium

[5] Tech Univ Eindhoven, NL-5600 MB Eindhoven, Netherlands

来源：

SOLID STATE COMMUNICATIONS | 1998年 / 106卷 / 05期

关键词：

D O I：

10.1016/S0038-1098(98)00020-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Hamiltonian, which describes the surface-induced anisotropy for impurity spin in mesoscopic wires of dilute magnetic alloys, is derived for the wires with a rectangular cross-section and rough surfaces. We show that due to the combined effect of the four surfaces of the wire, the impurity-spin energy spectra are substantially different from those in a semi-infinite host. Moreover, we find that a moderate roughness of the surface enhances the splitting of the impurity-spin energy level. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：293 / 297

页数：5

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