ELECTRONIC-STRUCTURE OF SI(100)2X1-CL STUDIED WITH ANGLE-RESOLVED PHOTOEMISSION

被引：59

作者：

JOHANSSON, LSO

UHRBERG, RIG

LINDSAY, R

WINCOTT, PL

THORNTON, G

机构：

[1] UNIV MANCHESTER,INTERDISCIPLINARY RES CTR SURFACE SCI,MANCHESTER M13 9PL,LANCS,ENGLAND

[2] UNIV MANCHESTER,DEPT CHEM,MANCHESTER M13 9PL,LANCS,ENGLAND

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.42.9534

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The chlorine-chemisorbed Si(100)2×1-Cl surface has been studied with polarization-dependent angle-resolved photoemission, employing single-domain surfaces obtained from vicinal Si(100) samples. Contributions from seven Cl-induced surface-state bands are identified in the photoemission spectra in the energy range 5.1 9.4 eV below the Fermi level. One band, at about -8.2 eV initial energy, is attributed to Si-Cl bonding orbitals of mainly pz character, while four of the higher-energy bands are associated with Cl nonbonding orbitals of mainly px,py character. A very weak structure at about -9.4 eV initial energy is attributed to Si(s)-Cl(pz) bonding states. The polarization dependence of the five upper bands in the »-J» and »-J» directions of the surface Brillouin zone indicates mirror-plane symmetries consistent with a symmetric dimer model. © 1990 The American Physical Society.

引用

页码：9534 / 9539

页数：6

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