ELASTIC STRESS DOMAINS AND THE HERRINGBONE RECONSTRUCTION ON AU(111)

被引:259
作者
NARASIMHAN, S [1 ]
VANDERBILT, D [1 ]
机构
[1] RUTGERS STATE UNIV,DEPT PHYS & ASTRON,PISCATAWAY,NJ 08855
关键词
D O I
10.1103/PhysRevLett.69.1564
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We suggest that the herringbone reconstruction of the Au(111) surface results from the spontaneous formation of "stress domains." The surface is described theoretically by a 2D Frenkel-Kontorova model. Upon including long-range elastic interactions, the stress-domain pattern is energetically favored. The surface topography and structure factor obtained by relaxing atomic coordinates using molecular dynamics bear a strong resemblance to scanning tunneling microscopy pictures and x-ray scattering data, respectively. Our numerical estimate for the separation between domain walls is consistent with experimental results.
引用
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页码:1564 / 1567
页数:4
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