STRUCTURAL STUDY OF THE CLOSE-PACKED 2-DIMENSIONAL PHASES OF PB ON GE(111) AND SI(111)

被引：88
|
作者：
SEEHOFER, L
FALKENBERG, G
DABOUL, D
JOHNSON, RL
机构：
[1] Institut für Experimentalphysik, Universität Hamburg, D-22761 Hamburg
来源：
PHYSICAL REVIEW B | 1995年 / 51卷 / 19期
关键词：
D O I：
10.1103/PhysRevB.51.13503
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The close-packed two-dimensional structures of Pb on Ge(111) and Si(111) have been studied with scanning tunneling microscopy (STM), reflection high-energy electron diffraction, and low-energy electron diffraction. Several closely-related commensurate and incommensurate phases were observed. For both adsorbate systems, schematic phase diagrams are derived and compared to the predictions of the domain-wall theory for commensurate-incommensurate phase transitions. A complex structural model is presented which describes the various incommensurate phases and is in good agreement with the STM data. © 1995 The American Physical Society.
引用
收藏
页码：13503 / 13515
页数：13
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