Oxygen-induced enhancement of the spin-dependent effects in electron spectroscopies of Fe(001)

被引：77

作者：

Bertacco, R ^{[1
]}

Ciccacci, F ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Fis, INFM, I-20133 Milan, Italy

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.59.4207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oxygen adsorption in an ordered p(1 X 1) fashion on the Fe(001) surface has been studied by empty states spectroscopies using a spin-polarized electron beam. The low-energy electron absorption and reflection display a much larger spin dependence in Fe(001)-p(1 X 1)O than in Fe(001). Peak values of the spin asymmetries of the absorbed (reflected) current larger than 13% (45%) at around 9-11 eV above the Fermi level are found. Spin-resolved inverse photoemission reveals that in the same energy range the exchange splitting between majority- and minority-spin states in Fe(001)-p(1 X 1)O is similar to 50% larger than in the clean surface. [S0163-1829(99)09905-1].

引用

页码：4207 / 4210

页数：4

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