LEED STRUCTURE-ANALYSIS OF PB(110)

被引：7

作者：

BREUER, U ^{[1
]}

PRINCE, KC ^{[1
]}

BONZEL, HP ^{[1
]}

OED, W ^{[1
]}

HEINZ, K ^{[1
]}

SCHMIDT, G ^{[1
]}

MULLER, K ^{[1
]}

机构：

[1] UNIV ERLANGEN NURNBERG, LEHRSTUHL FESTKORPERPHYS, W-8520 ERLANGEN, GERMANY

来源：

SURFACE SCIENCE | 1990年 / 239卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(90)90604-7

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：

The multilayer relaxation of Pb(110) was investigated by LEED. Data were taken at 130 and 300 K using a computer controlled video based technique. They were analyzed by full dynamical calculations. A quantitative comparison between experiment and theory via the Pendry R-factor confirms the strong contraction of the first layer spacing found in earlier work, as well as the oscillatory relaxation of deeper spacings. The results for the relaxations of the first three layer spacings are -17.1 ± 2.9%, + 3.4 ± 2.9%, -6.8 ± 4.6% for 130 K and -19.4 ± 2.9%, + 4.6 ± 4.6%, -6.8 ± 2.9% for 300 K. This means that within the limits of error there is no relaxational change between 130 and 300 K in agreement with earlier ion scattering results. The agreement between experimental and computed spectra is only mediocre though a number of attempts were made to improve the fit. © 1990.

引用

页码：L493 / L497

页数：5

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