Drastic photoemission line shape changes in Li due to surface-bulk interference and plasmon excitations

被引：18

作者：

Claesson, D ^{[1
]}

Lindgren, SÅ

Walldén, L

Chiang, TC

机构：

[1] Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden

[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.82.1740

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Band mapping of Li by angle-resolved photoemission shows anomalous peak dispersion for near-uv photons, giving the false impression that an energy gap of about 1 eV is present just below the Fermi level. This is explained in terms of drastic line shape changes caused by interference between surface and bulk emission together with enhancements of these contributions for photon energies near the multipole surface plasmon and bulk plasmon energies, respectively.

引用

页码：1740 / 1743

页数：4

共 25 条

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