The ferromagnetic spin filter

被引：1

作者：

Weber, W ^{[1
]}

Oberli, D ^{[1
]}

Riesen, S ^{[1
]}

Siegmann, HC ^{[1
]}

机构：

[1] ETH Zurich, Festkorperphys Lab, CH-8093 Zurich, Switzerland

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

electron spectroscopy; spin filter; spin-polarized electron scattering; spin precession;

D O I：

10.1109/20.801021

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The transmission of spin-polarized electrons across free standing Au/Co/Au foils has been investigated. A larger transmission probability for electrons with their spin polarization (P) over right arrow(0) parallel to the sample magnetization (M) over right arrow than for electrons with (P) over right arrow(0) antiparallel to (M) over right arrow is found. By choosing (P) over right arrow(0) perpendicular to M, the spin polarization rotates into the direction of (M) over right arrow and simultaneously also precesses around it. The precession around iii is the electron analogue to the Faraday rotation observed with polarized light. It is caused by the spin dependence of the inner potential of the ferromagnetic Co film.

引用

页码：2907 / 2909

页数：3

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