Oscillations of Andreev states in clean ferromagnetic films

被引：90

作者：

Zareyan, M

Belzig, W

Nazarov, YV

机构：

[1] Delft Univ Technol, Dept Appl Phys, NL-2628 CJ Delft, Netherlands

[2] Delft Univ Technol, Delft Inst Microelect & Submicrontechnol, NL-2628 CJ Delft, Netherlands

[3] Inst Adv Studies Basic Sci, Zanjan 45195, Iran

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.86.308

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the influence of the exchange field on the Andreev bound states in a ferromagnetic (F) film backed on one side by a superconductor (S). Our model accounts for diffusive reflection at the outer surface and possible backscattering at the FS interface. Phase shifting of the Andreev level by the exchange held results in an oscillatory behavior of the density of states of F as a function of the layer thickness. We show that our results agree quantitatively with recent experiments.

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页码：308 / 311

页数：4

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