MIGRATION OF CU ADATOMS ON A CU(100) SURFACE, STUDIED WITH LOW-ENERGY ION-SCATTERING (LEIS)

被引：81

作者：

BREEMAN, M ^{[1
]}

BOERMA, DO ^{[1
]}

机构：

[1] UNIV GRONINGEN, CTR MAT SCI, 9718 CM GRONINGEN, NETHERLANDS

来源：

SURFACE SCIENCE | 1992年 / 269卷

关键词：

D O I：

10.1016/0039-6028(92)91254-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the observation of adatoms appearing on the surface due to ion beam irradiation. These adatoms are interpreted to be self-interstitials, created in the damage cascades, which have diffused to the surface where they are trapped. From our LEIS experiments on a stepped Cu(100) surface we determined that on average 4.5(1.5) Cu adatoms per impinging ion reach the surface. The temperature at which Cu atoms on a Cu(100) surface become mobile was determined to be 140(5) K. This value was deduced from the temperature dependence of the Cu adatom yield.

引用

页码：224 / 228

页数：5

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