VIBRATIONS OF ADSORBED ALKALI-METAL ATOMS - NA ON CU(111)

被引：74

作者：

LINDGREN, SA

SVENSSON, C

WALLDEN, L

机构：

[1] Department of Physics, Chalmers University of Technology

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.42.1467

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vibrations of alkali-metal atoms adsorbed on a metal surface are observed by electron-energy-loss spectroscopy. From the loss intensity recorded for Na on Cu(111) a dynamic dipole charge of 0.5e is obtained at low alkali-metal coverage. The dynamic dipole charge is found to decrease gradually with increasing coverage making the loss peak due to Na vibrations difficult to observe for coverages above approximately half of a full monolayer. © 1990 The American Physical Society.

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页码：1467 / 1469

页数：3

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