Band offsetts at the GaInP/GaAs heterojunction

A. Lindell, M. Pessa, A. Salokatve, F. Bernardini, R.M. Nieminen, M. Paalanen

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)
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Abstract

We have measured current–voltage curves and the temperature dependence of the zero bias conductance for a p-type Be-doped GaInP/GaAs heterojunction grown by the molecular beam epitaxy method. We have determined the valence band offset ΔEν from both measurements and find it to be 310 meV within 5% of accuracy. Similarly, we find for an n-type Si-doped sample that the conduction band offset ΔEC is 95 meV. First-principles calculations have been carried out for the atomic and electronic structures of the interfaces. For the thermodynamically favored interfaces, the valence band offset is found not to be sensitive to atomic relaxations at the interface. The calculated values are in good agreement with the experiments.
Original languageEnglish
Pages (from-to)3374-3380
JournalJournal of Applied Physics
Volume82
Issue number7
DOIs
Publication statusPublished - 1997
MoE publication typeA1 Journal article-refereed

Keywords

  • band offsetts
  • semiconductor interface

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