2007
DOI: 10.1063/1.2644572
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Local Structure around In Atoms in InxGa1−xN Multi-Quantum-Wells Studied by XAFS

Abstract: Indium K-edge EXAFS measurements were carried out to study local structures around In atoms in In x Ga 1-x N multi-quantum-well (MQW) structures of 10 periods with In 0.2 Ga 0.8 N (2.5 nm) and In 0.05 Ga 0.95 N (7.5 nm). We found the following: (1) Debye-Waller factors for In-In and In-Ga atomic pairs in MQW are smaller than those in single QW (SQW) In x Ga 1-x N. (2) The differences in the interatomic distances of In-In and In-Ga between the horizontal and vertical direction are small. These results indicate … Show more

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