BAND DISPERSION OF LOCALIZED VALENCE STATES IN LIF(100)

被引：35

作者：

HIMPSEL, FJ

TERMINELLO, LJ

LAPIANOSMITH, DA

EKLUND, EA

BARTON, JJ

机构：

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.68.3611

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The band dispersion of the localized, F 2p-like valence band of LiF is mapped using an imaging technique to obtain k (E). The bandwidth is 3.5 eV (from GAMMA-15 to X4'). This is 17% wider than predicted by first-principles band calculations, implying an expansion of the bandwidth by self-energy effects in qualitative agreement with quasiparticle calculations. The self-energy effect is opposite to that seen in delocalized systems, such as alkali metals.

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页码：3611 / 3614

页数：4

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