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摘要:
The stress distribution in GaAs-AlGaAs epitaxial structure was displayed by electron backscatter diffraction (EBSD) technique with high spacial resolution of 30-40 nm. The measuring parameters, including image quality IQ, Hough peak of Kikuchi patterns, crystal misorientations and local rotations, etc., were treated as stress sensitive parameters to analyze strain states in periodically epitaxial GaAs-AlGaAs layers. The micro-sized strained regions were distinguished by the fast Fourier transform (FFT) and the intensity calculation.
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来源 :
Journal of Functional Materials
ISSN: 1001-9731
年份: 2008
期: 3
卷: 39
页码: 515-518,522