High-spatial-resolution strain measurements by Auger electron spectroscopy in epitaxial-lateral-overgrowth GaN

被引:14
作者
Cai, DJ
Xu, FC
Kang, JY [1 ]
Gibart, P
Beaumont, B
机构
[1] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Photon Res Ctr, Xiamen 361005, Peoples R China
[3] Lumilog, F-06220 Vallauris, France
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.1929866
中图分类号
O59 [应用物理学];
学科分类号
摘要
A high-spatial-resolution strain measurement by Auger electron spectroscopy was established and applied to analyze the strain distributions in epitaxial-lateral-overgrowth (ELO) GaN. The theoretical N KVV Auger line was set by fitting the experimental data and then the relation between Auger shift and strain was obtained. By this relation the local strain distributions in regions of special interest were measured, which well interpret the mechanism of ELO process. A crucial stage for strain release was found within a distance range above the mask. This evidence confirms the existence of the Auger physical shift. (c) 2005 American Institute of Physics.
引用
收藏
页码:1 / 3
页数:3
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