Non-Bloch nature of alloy states in a conventional semiconductor alloy: GaxIn1-xP as an example.
Using GaxIn1-xP as a prototype system, we present the first systematic examination of the alloy scattering effects on the global electronic structure of a semiconductor alloy for the whole composition range. Contrary to conventional wisdom, many electronic states in such a "well behaved" alloy are found to differ drastically from a Bloch state, including band edge states that are derived from degenerate critical points. This study offers a more comprehensive picture of the electronic structure of the alloy, and reveals new nontrivial but vital implications of the alloy scattering on transport and optical properties.
Zhang
Yong
Y
National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401, USA. yong_zhang@nrel.gov
Mascarenhas
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Wang
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