Ordering of nanostructures in a Si/Ge0.3Si0.7/Ge system during molecular beam epitaxy

被引:11
作者
Cirlin, GE [1 ]
Egorov, VA
Sokolov, LV
Werner, P
机构
[1] Russian Acad Sci, Inst Analyt Instrumentat, St Petersburg 198063, Russia
[2] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia
[3] Max Planck Inst Mikrostrukturphys, D-06120 Halle Saale, Germany
[4] Russian Acad Sci, Inst Semicond Phys, Siberian Div, Novosibirsk 630090, Russia
关键词
D O I
10.1134/1.1521233
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The structural properties of nanoobjects in a heteroepitaxial Si/Ge0.3Si0.7/Ge system have been studied using atomic-force microscopy. The formation of nanometer islands occurs at a lower Ge thickness than in the case of Si/Ge heteroepitaxy. The effects of the spatial ordering of the nanostructures are found: the formation of groups of hut-clusters around craters at the initial stage of the formation of 3D objects, and the alignment of dome-clusters in rows as the amount of deposited Ge rises. (C) 2002 MAIK "Nauka / Interperiodica".
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页码:1294 / 1298
页数:5
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