Core-level subsurface shifted component in a 4d transition metal:: Ru(10(1)over-bar-0)

被引：17

作者：

Baraldi, A

Lizzit, S

Comelli, G

Goldoni, A

Hofmann, P

Paolucci, G

机构：

[1] Sincrotrone Trieste SCpA, I-34012 Trieste, Italy

[2] Univ Trieste, Sincrotrone Trieste, I-34127 Trieste, Italy

[3] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

[4] INFM, Lab TASC, I-34012 Trieste, Italy

[5] Univ Aarhus, Inst Storage Ring Facil, Aarhus, Denmark

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.61.4534

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Three components have been found in the Ru(10 (1) over bar 0) 3d(5/2) core-level spectra. Based on a photoelectron diffraction experiment they have been assigned to emission from the bulk and the first two surface layers. The first layer line is shifted by -480 meV from the bulk peak position and the second layer line by -240 meV. The relative magnitude of the observed shifts is in good agreement with a simple tight-binding model. The same model would, however, predict clearly observable shifts for other open 4d transition-metal surfaces, where only one shifted component has been reported. Possible reasons for the seemingly anomalous behavior of Ru are discussed.

引用

页码：4534 / 4537

页数：4

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