TY - JOUR
T1 - Strain-induced band-mixing effects in CdTe/ZnTe (001) superlattices
AU - Tit, Nacir
N1 - Funding Information:
The author would like to thank Professor M.W.C. Dharma-wardana for the invitation to visit the NRC-Ottawa, where the writing of this manuscript has been accomplished. His thanks extends to A. Al-Zarouni and Professors J. Chadi, C. Priester and V. Velasco for stimulating discussions, as well as to Professor A. Hamza for his critical reading of the manuscript. This work was supported by the Research Affairs at the UAE University under Grant No. 08-2-11/01.
PY - 2003/7/15
Y1 - 2003/7/15
N2 - The electronic bandstructures of the strained CdTe/ZnTe (001) superlattices (SLs) are investigated using the sp3s* tight-binding method, which includes the spin-orbit coupling and biaxial strain effects. The calculated bandstructures are studied versus the biaxial strain, SL layer thicknesses and valence-band offset (VBO). This SL has been chosen as a model for the vanishing-VBO heterostructures, such as the case of common-anion II-VI SLs. The results show that the electron is always confined within the CdTe slabs, whereas the hole is sensitive to the biaxial strain. Our theoretical results are further compared to the photoluminescence experiments and are shown consistent with the strain morphology along the SL growth direction, as well as the optical and structural qualities of the experimental samples.
AB - The electronic bandstructures of the strained CdTe/ZnTe (001) superlattices (SLs) are investigated using the sp3s* tight-binding method, which includes the spin-orbit coupling and biaxial strain effects. The calculated bandstructures are studied versus the biaxial strain, SL layer thicknesses and valence-band offset (VBO). This SL has been chosen as a model for the vanishing-VBO heterostructures, such as the case of common-anion II-VI SLs. The results show that the electron is always confined within the CdTe slabs, whereas the hole is sensitive to the biaxial strain. Our theoretical results are further compared to the photoluminescence experiments and are shown consistent with the strain morphology along the SL growth direction, as well as the optical and structural qualities of the experimental samples.
KW - CdTe-based heterostructures
KW - Strained superlattices
KW - Tight binding method
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U2 - 10.1016/S0921-5107(03)00094-1
DO - 10.1016/S0921-5107(03)00094-1
M3 - Article
AN - SCOPUS:0038113105
SN - 0921-5107
VL - 100
SP - 172
EP - 179
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
IS - 2
ER -