Self-organized patterning of an insulator-on-metal system by surface faceting and selective growth:: NaCl/Cu(211)

被引:61
|
作者
Fölsch, S [1 ]
Helms, A [1 ]
Zöphel, S [1 ]
Repp, J [1 ]
Meyer, G [1 ]
Rieder, KH [1 ]
机构
[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany
关键词
D O I
10.1103/PhysRevLett.84.123
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report experimental results on an insulator-on-metal system which is inherently unstable against lateral pattern formation on the nanometer scale. NaCl deposition on Cu(211) at substrate temperatures >300 K leads to faceting into (311) and (111) facets and selective NaCl growth on (311) facets only, thereby creating alternating stripes of bare Cu and NaCl-covered areas. The mesoscopic restructuring process is brought about by (1) the tendency to form (100)-terminated NaCl layers, (2) epitaxial matching between NaCl(100) and Cu(311), and (3) sufficient mobility of the Cu substrate surface.
引用
收藏
页码:123 / 126
页数:4
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