POLARIZATION-DEPENDENT ANGLE-RESOLVED PHOTOEMISSION-STUDY OF A SURFACE-STATE ON GASB(110)

被引：2

作者：

ZHANG, XD ^{[1
]}

LECKEY, RCG ^{[1
]}

RILEY, JD ^{[1
]}

FAUL, J ^{[1
]}

LEY, L ^{[1
]}

机构：

[1] UNIV ERLANGEN NURNBERG,INST TECH PHYS,W-8520 ERLANGEN,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.48.5300

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using polarization-dependent, angle-resolved photoemission, a prominent nondispersive structure in the normal emission spectra from GaSb(110) has been identified as being due to transitions from the Sb-derived dangling-bond surface state. The atomic-orbital character of the surface state was confirmed to be mainly p(z)-like, and the dispersion of the surface state along the GAMMABAR XBAR direction in the surface Brillouin zone was observed. Using symmetry selection rules, an accurate determination of GAMMA8v, the valence-band maximum (VBM), was made. The surface state was found to be 150+/-100 meV above the VBM, showing that the surface state is indeed an intrinsic intergap surface state.

引用

页码：5300 / 5305

页数：6

共 23 条

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