PROBING DEPTH OF THE LOW-ENERGY CASCADE ELECTRONS FROM A TRANSITION-METAL

被引：18

作者：

DONATH, M ^{[1
]}

SCHOLL, D ^{[1
]}

SIEGMANN, HC ^{[1
]}

KAY, E ^{[1
]}

机构：

[1] IBM CORP,ALMADEN RES CTR,SAN JOSE,CA 95120

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1991年 / 52卷 / 03期

关键词：

D O I：

10.1007/BF00324420

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A surface probing depth of only approximately 2 layers for low energy cascade electrons excited with a 3.2 keV primary electron beam is clearly demonstrated by model experiments with non-magnetic overlayers of Ta on magnetic substrates of Fe/Ni80Fe20. This result establishes a short probing depth of low energy electrons in transition metals generalizing the previously observed short magnetic probing depth for spin-polarized electrons in ferromagnets. The short probing depth sheds new light on a number of spectroscopic observations on ferromagnetic transition metals, and has important implications concerning surface magnetic properties and scattering processes of hot electrons in transition metals.

引用

页码：206 / 209

页数：4

共 26 条

[1] SPIN-POLARIZED ELECTRON-ENERGY-LOSS SPECTROSCOPY ON NI [J].