MISFIT DISLOCATIONS LYING ALONG (100) IN [001] GAAS/IN0.25GA0.75AS/GAAS QUANTUM-WELL HETEROSTRUCTURES

被引:10
作者
ZOU, J [1 ]
CHOU, TC [1 ]
COCKAYNE, DJH [1 ]
SIKORSKI, A [1 ]
VAUGHAN, MR [1 ]
机构
[1] CSIRO,DIV RADIOPHYS,EPPING,NSW 2121,AUSTRALIA
关键词
D O I
10.1063/1.112938
中图分类号
O59 [应用物理学];
学科分类号
摘要
Misfit dislocations in [001] GaAs/In0.25Ga0.75As/GaAs multiquantum well heterostructures are studied by transmission electron microscopy. Two sets of misfit dislocation networks have been observed; one is a set of conventional 60 degrees misfit dislocations lying along <110>, and the other is a set of edge dislocations lying along <100>. The location of these misfit dislocations with respect to the strained layers is investigated. A qualitative explanation for the generation mechanism of the misfit dislocations lying along <100> is given.
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页码:1647 / 1649
页数:3
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