ELECTRON-STIMULATED DESORPTION OF NEUTRAL LITHIUM ATOMS FROM LIF DUE TO EXCITATION OF SURFACE EXCITONS

被引：40

作者：

WURZ, P

SARNTHEIN, J

HUSINSKY, W

BETZ, G

NORDLANDER, P

WANG, YS

机构：

[1] VIENNA TECH UNIV,INST ALLGEMEINE PHYS,A-1040 VIENNA,AUSTRIA

[2] RICE UNIV,RICE QUANTUM INST,HOUSTON,TX 77251

[3] FUDAN UNIV,DEPT NUCL SCI,SHANGHAI,PEOPLES R CHINA

[4] RICE UNIV,DEPT PHYS,HOUSTON,TX 77251

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.43.6729

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured electron-stimulated desorption of neutral lithium atoms from LiF at energies near the band gap of the crystal. The significant contribution to the desorption yield of neutral alkali-metal atoms due to the creation of surface excitons is resolved. These measurements also prove the theoretically expected threshold for desorption at the energy of the bulk exciton.

引用

页码：6729 / 6732

页数：4

共 12 条

[1]

BETZ G, 1990, DESOPTION INDUCED EL, V19

[2]

COX PA, 1986, SURF SCI, V175, pL782, DOI 10.1016/0039-6028(86)90232-3

[3] (100) SURFACES OF ALKALI HALIDES .1. AIR AND VACUUM CLEAVED SURFACES [J].