Native hole traps of ferromagnetic Ga1-xMnxAs layers on (100) GaAs substrates

  • I. T. Yoon
  • , C. J. Park
  • , H. Y. Cho
  • , T. W. Kang
  • , K. H. Kim
  • , D. J. Kim

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Deep-level transient spectroscopy (DLTS) was used to characterize native defects of Ga1-xMnx layers with x≈2.2% and x≈4.4% grown by molecular beam epitaxy (MBE). Three hole traps at about 0.38±0.01, 0.43±0.01, and 0.65±0.01 eV above the valence band maxima were observed. These traps were found to be associated with the gallium vacancy or the arsenic antisite complex, and single- and double-donor states of arsenic antisite.

Original languageEnglish
Pages (from-to)4354-4356
Number of pages3
JournalApplied Physics Letters
Volume83
Issue number21
DOIs
StatePublished - 24 Nov 2003

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