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Can electrical deactivation of highly Si-doped GaAs be explained by autocompensation

  • S. Schuppler
  • , D. L. Adler
  • , L. N. Pfeiffer
  • , K. W. West
  • , E. E. Chaban
  • , P. H. Citrin

Research output: Contribution to journalArticlepeer-review

Abstract

Using near-edge x-ray absorption fine structure, the first experimental determination of Si atom concentrations occupying As sites in Si-doped GaAs (100) is reported. The measurements reveal that at high doping levels (≳1019 cm-3) in molecular-beam-epitaxy-grown samples, the number of such p-type Si atoms is insufficient to account for the observed large reduction of free-carriers.

Original languageEnglish (US)
Pages (from-to)2357-2359
Number of pages3
JournalApplied Physics Letters
Volume63
Issue number17
DOIs
StatePublished - 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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