Photoemission study of the electronic structure of a (GaAs)2/(AlAs)2 superlattice.
Photoemission study of the electronic structure of a (GaAs)2/(AlAs)2 superlattice.
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(GaAs)2/(AlAs)2 超晶格电子结构的光电研究。
DOI:
10.1103/physrevb.44.3787
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发表时间:
1991
期刊:
影响因子:
--
通讯作者:
Ley
中科院分区:
文献类型:
--
作者:
Cai;Riley;Leckey;Usher;Fraxedas;Ley
We report results from an angle-resolved photoemission study of the electronic structure of the short-period superlattice (GaAs) 2/(AlAs) 2. These results support the first-principles linear-muffin-tin-orbital-method calculation of Gopalan et al. In particular, a 0.5-eV band gap caused by the reduced periodicity in the [001] growth direction is clearly seen at a binding energy (relative to the valence-band maximum) of 5.3 eV.