Two-dimensional effects at the Fermi level of the c(2 x 2)-MnCu/Cu(001) surface alloy

被引：3
|
作者：
Gallego, S [1 ]
Soria, F [1 ]
Muñoz, MC [1 ]
机构：
[1] CSIC, Inst Ciencia Mat Madrid, Madrid 28049, Spain
来源：
SURFACE SCIENCE | 2003年 / 524卷 / 1-3期
关键词：
electron density; excitation spectra calculations; Green's function methods; photoelectron spectroscopy; angle resolved photoemission; surface electronic phenomena (work function; surface potential; surface states; etc.); copper; manganese; magnetic surfaces; metallic surfaces;
D O I：
10.1016/S0039-6028(02)02530-X
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A detailed study of the electronic structure of the c(2 x 2)-MnCu/Cu(001) surface alloy at the Fermi level is presented. We show that the complex topology of the two-dimensional momentum distribution of the electrons is due to the sum of two effects: the projection of the bulk Fermi surface onto the (2 x 2) plane, and the presence of new electronic states induced by the minority spin band of Mn. The crucial role of the surface potential in the intensity and dispersion of the states is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：164 / 172
页数：9
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