STEP-CORRELATED DIFFUSION OF IN ATOMS ON AG(100) AND AG(111) SURFACES

被引：23

作者：

FINK, R

WESCHE, R

KLAS, T

KRAUSCH, G

PLATZER, R

VOIGT, J

WOHRMANN, U

SCHATZ, G

机构：

[1] Fakultät für Physik, Universität Konstanz

来源：

SURFACE SCIENCE | 1990年 / 225卷 / 03期

关键词：

D O I：

10.1016/0039-6028(90)90454-G

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：

Diffusion processes on vicinally cut Ag(100) and Ag(111) surfaces have been studied utilizing the perturbed-angular-correlation (PAC) spectroscopy with 111In probes at very low concentration (10-4 ML). The occupation of step and terrace sites by PAC probes at the Ag surfaces is detected via the electric-field-gradient tensor and is observed as a function of annealing temperature. From the thermal conversion between the different 111In surface sites activation energies for microscopic diffusion steps have been estimated. © 1990.

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页码：331 / 340

页数：10

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