LOW-Q PHONONS AND WIDTHS OF LOW-ENERGY ELECTRON-DIFFRACTION PEAKS

被引：17

作者：

HEINE, V

PENDRY, JB

机构：

[1] The Cavendish Laboratory, Cambridge

[2] Atomic Energy Research Establishment, Harwell

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 22卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.22.1003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low-q phonons cause local distortions of the crystal lattice which cause the gaps in the electronic band structure to wobble up and down. This results in a broadening of the peaks in low-energy electron diffraction which otherwise would be much narrower than observed, according to recent calculations. The effect varies with temperature and energy as T12E34 in rough agreement with experiment. © 1969 The American Physical Society.

引用

页码：1003 / &

共 11 条

[1] BAND STRUCTURE TREATMENT OF LOW ENERGY ELECTRON DIFFRACTION INTENSITIES [J].