STABILITY OF DISK AND STRIPE PATTERNS OF NANOSTRUCTURES AT SURFACES

被引：26

作者：

ZEPPENFELD, P ^{[1
]}

KRZYZOWSKI, MA ^{[1
]}

ROMAINCZYK, C ^{[1
]}

DAVID, R ^{[1
]}

COMSA, G ^{[1
]}

RODER, H ^{[1
]}

BROMANN, K ^{[1
]}

BRUNE, H ^{[1
]}

KERN, K ^{[1
]}

机构：

[1] PHB ECUBLENS, EPF LAUSANNE, INST PHYS EXPTL, CH-1015 LAUSANNE, SWITZERLAND

来源：

SURFACE SCIENCE | 1995年 / 342卷 / 1-3期

关键词：

ATOM-SOLID SCATTERING AND DIFFRACTION - ELASTIC; LOW INDEX SINGLE CRYSTAL SURFACES; PLATINUM; SCANNING TUNNELING MICROSCOPY; SILVER; SURFACE STRESS; SURFACE STRUCTURE; MORPHOLOGY; ROUGHNESS; AND TOPOGRAPHY;

D O I：

10.1016/0039-6028(95)00891-8

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 ordering of two-dimensional Ag islands embedded in the Pt(111) surface layer has been investigated using He-atom scattering and scanning tunneling microscopy. At lower Ag coverage the embedded islands consist of compact clusters (disks) arranged into a short-range ordered two-dimensional array. At higher coverage the Ag islands have an elongated shape leading to a ''labyrinthine'' pattern of regularly spaced meandering stripes. As the temperature is increased, both the disk and stripe arrays of embedded Ag clusters transform reversibly into a disordered 2D Ag-Pt mixture. The observed behavior is explained in terms of strain-induced long-range interactions.

引用

页码：L1131 / L1136

页数：6

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