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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