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.

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页码：13503 / 13515

页数：13

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