Superlattice kp models for calculating electronic structure

N. F. Johnson, H. Ehrenreich, G. Y. Wu, T. C. McGill

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A quantitative comparison is presented of two realistic superlattice k p electronic structure calculations. The first is an analytic approach based on an extended bulk Kane model; the second is an extended-basis treatment, developed by McGill and collaborators, based on bulk pseudopotential calculations. Both approaches are applied to HgTe/CdTe superlattices. Energies, wave functions, effective masses, and oscillator strengths are found to agree within 10%. The limited-basis approach based on the Kane model is seen to be adequate for superlattices whose bulk constituents have direct gaps in the conduction- and valence-band regions near the superlattice band gap.

Original languageEnglish (US)
Pages (from-to)13095-13098
Number of pages4
JournalPhysical Review B
Volume38
Issue number18
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Condensed Matter Physics

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