Local structure of a rolled-up single crystal: An x-ray microdiffraction study of individual semiconductor nanotubes

被引：41
|
作者：
Krause, B
Mocuta, C
Metzger, TH
Deneke, C
Schmidt, OG
机构：
[1] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 16期
关键词：
D O I：
10.1103/PhysRevLett.96.165502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Crystals with cylindrical symmetry, not existing in nature, are mimicked by the roll-up of single-crystalline and highly strained semiconductor bilayers. Exploiting this, the local structure of such individual rolled-up nanotubes is locally probed and quantified nondestructively by x-ray microbeam diffraction. A comparison to simulations, based on the minimization of the elastic energy, allows us to determine layer thicknesses and lattice parameter distributions within the strongly curved bilayers.
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页数：4
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