Accurate valence band width of diamond

被引：46

作者：

Jimenez, I

Terminello, LJ

Sutherland, DGJ

Carlisle, JA

Shirley, EL

Himpsel, FJ

机构：

[1] NIST, OPT TECHNOL DIV, GAITHERSBURG, MD 20899 USA

[2] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.56.7215

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An accurate width is determined,for the valence band of diamond by imaging photoelectron momentum distributions for a variety of initial-and final-state energies. The experimental result of 23.0+/-0.2 eV(2) agrees well with first-principles quasiparticle calculations (23.0 and 22.88 eV) and significantly exceeds the local-density-functional width, 21.5+/-0.2 eV(2). This difference quantifies effects of creating an excited hole state (with associated many-body effects) in a band measurement vs studying ground-state properties treated by local-density-functional calculations.

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页码：7215 / 7221

页数：7

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