Band Structure Modulation in Ternary-Based InAs/ AlAs1-xSbx /InAs1-xSbx Superlattices

Abstract

This study demonstrates an overall view of recent quantum mechanical based modeling effort using empirical tight-binding method to expand the ability of calculation of electronic band structure for strained-layer superlattices composed of ternary InAs/InAs1-xSbx and InAs/InAs1-xSbx/AlAs1-xSbx materials. Using a modified sp3s* empirical tight-binding method and building the superlattice Hamiltonian, we demonstrate that combining the virtual crystal approximation with a bowing parameter for the s-on-site energy accurately predicts ternary superlattice behavior. We provide a comprehensive overview of our numerical simulations, which model diverse superlattice configurations ranging from long wavelength infrared range to wide-bandgap barrier architectures. Notably, the simulated energy levels strongly agree with experimental bandgap measurements of the ternary superlattices and their structural variants.

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BibTeX RIS

BibTeX

@misc{dehzangi2026band,
  title = {{Band Structure Modulation in Ternary-Based InAs/ AlAs1-xSbx /InAs1-xSbx Superlattices}},
  author = {Arash Dehzangi and Jiakai Li},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.04308},
  eprint = {2610.04308},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.04308},
  note = {CC BY-SA 4.0},
}

RIS

TY  - UNPB
TI  - Band Structure Modulation in Ternary-Based InAs/ AlAs1-xSbx /InAs1-xSbx Superlattices
AU  - Arash Dehzangi
AU  - Jiakai Li
PY  - 2026
DA  - 2026/10/03
PB  - arXiv
DO  - 10.48550/arxiv.2610.04308
UR  - https://arxiv.org/abs/2610.04308
AB  - This study demonstrates an overall view of recent quantum mechanical based modeling effort using empirical tight-binding method to expand the ability of calculation of electronic band structure for strained-layer superlattices composed of ternary InAs/InAs1-xSbx and InAs/InAs1-xSbx/AlAs1-xSbx materials. Using a modified sp3s* empirical tight-binding method and building the superlattice Hamiltonian, we demonstrate that combining the virtual crystal approximation with a bowing parameter for the s-on-site energy accurately predicts ternary superlattice behavior. We provide a comprehensive overview of our numerical simulations, which model diverse superlattice configurations ranging from long wavelength infrared range to wide-bandgap barrier architectures. Notably, the simulated energy levels strongly agree with experimental bandgap measurements of the ternary superlattices and their structural variants.
ER  -

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