Spin-dependent electron dynamics investigated by means of time- and spin-resolved photoemission

被引：13

作者：

Aeschlimann, M ^{[1
]}

Burgermeister, R

Pawlik, S

Bauer, M

Oberli, D

Weber, W

机构：

[1] ETH Zurich, Tech Chem Lab, CH-8092 Zurich, Switzerland

[2] ETH Zurich, Solid State Phys Lab, CH-8092 Zurich, Switzerland

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1998年 / 88卷

关键词：

electron dynamics; ultrafast spectroscopy; surface science; magnetism;

D O I：

10.1016/S0368-2048(97)00110-2

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The power of time-and spin-resolved two photon photoemission is demonstrated. This method allows the determination of the spin-dependent decay of an excited electron population in ferromagnetic materials by means of a real time experiment. The lifetime of majority-spin electrons is found to be longer compared with that of minority-spin electrons for both cobalt and iron. This study shows that the relaxation dynamics of excited electrons is strongly influenced by the imbalance between majority-and minority-spin electrons in a ferromagnet. (C) 1998 Elsevier Science B.V.

引用

页码：179 / 183

页数：5

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