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
收藏
页码：L1131 / L1136
页数：6
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