Step-step interaction energy on Cu(111) vicinal surfaces

被引：15

作者：

Giesen, M ^{[1
]}

Icking-Konert, GS ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Grenzflachenforsch & Vakuumphys, D-52425 Julich, Germany

来源：

SURFACE REVIEW AND LETTERS | 1999年 / 6卷 / 01期

关键词：

D O I：

10.1142/S0218625X99000068

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 have measured the terrace width distribution on copper (111) vicinal surfaces with (100) steps. For all surfaces, the distribution is well fitted by a Gaussian. The width of the Gaussian scales with the mean terrace width L, which is indicative of a repulsive 1/L(2) interaction potential between steps. We determine an interaction strength of the potential of 3.2 +/- 0.2 meV per atom length. From the temperature-dependent analysis of the step-step distance distribution, we find a kink formation energy for (100) steps of 0.12 +/- 0.03 eV, which is consistent with previous measurements of the kink energy on copper (100) vicinal surfaces.

引用

页码：27 / 34

页数：8

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