EXCHANGE SPLITTING OF SP-LIKE SURFACE-STATES ON NI(001)

被引：35

作者：

STARKE, K ^{[1
]}

ERTL, K ^{[1
]}

DOSE, V ^{[1
]}

机构：

[1] MAX PLANCK INST PLASMA PHYS,EURATOM ASSOC,W-8046 GARCHING,GERMANY

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.45.6154

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spin-resolved inverse photoemission is employed to investigate crystal-induced and image-potential surface states on Ni(001). The observed value of the spin splitting for the crystal-induced state at XBAR is 180 +/- 60 meV and there is experimental evidence of a nonvanishing exchange splitting of the image-potential state at GAMMABAR. These data are consistently described within the framework of a multiple-reflection model for surface states if the upper band-gap boundaries are assumed to be exchange split by 200 meV at GAMMABAR and 230 meV at XBAR. For GAMMABAR, this splitting was confirmed experimentally by spin-resolved target-current spectroscopy.

引用

页码：6154 / 6162

页数：9

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