Anisotropic In distribution in InGaN core-shell nanowires

被引：8

作者：

Leclere, C. ^{[1
]}

Katcho, N. A. ^{[2
]}

Tourbot, G. ^{[3
,4
]}

Daudin, B. ^{[3
,4
]}

Proietti, M. G. ^{[5
]}

Renevier, H. ^{[1
]}

机构：

[1] Grenoble INP Minatec, Mat & Genie Phys Lab, Grenoble, France

[2] CEA Grenoble, Liten, F-38054 Grenoble, France

[3] Univ Grenoble 1, CEA CNRS Grp Nanophys & Semicond, F-38054 Grenoble, France

[4] CEA Grenoble, INAC, SP2M, F-38054 Grenoble, France

[5] CSIC Univ Zaragoza, Inst Ciencia Mat Aragon, Dept Fis Mat Condensada, Zaragoza, Spain

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 116卷 / 01期

关键词：

FINE-STRUCTURE; ABSORPTION; LOCALIZATION; IFEFFIT; ORIGIN;

D O I：

10.1063/1.4886756

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, we investigate the local atomic structure of defect-free homogeneous and self-organized core-shell structure nanowires by means of X-ray Absorption Fine Structure (XAFS) Spectroscopy at the In LIII and K edges and Multiwavelength Anomalous Diffraction. The results are interpreted by comparison of the experimental data with X-ray absorption calculations carried out with ab initio structural models. Extended-XAFS data analysis at In K-edge shows an anisotropic In distribution in the second nearest neighbors pointing out to a deviation from randomness in In distribution for the core-shell sample. (C) 2014 AIP Publishing LLC.

引用

页数：7

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