INVESTIGATION OF POSITRONIUM FORMATION AT A AG(100) SURFACE

被引：20

作者：

LYNN, KG

机构：

[1] Brookhaven National Laboratory, Upton

来源：

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 11期

关键词：

D O I：

10.1088/0022-3719/12/11/007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Positronium formation as a function of sample temperature and incident energy was studied on a Ag(100) surface with monoenergetic positrons. A constant re-emission of positronium from the Ag sample at room temperature is associated with special sites, presumably defects or impurities on the surface. An increase in the positronium fraction as a function of temperature is identified as detrapping from a surface trap.

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页码：L435 / L439

页数：5

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