Optically detected magnetic resonance of epitaxial nitrogen-doped ZnO

G N Aliev, S J Bingham, D Wolverson, J J Davies, H Makino, H J Ko, T Yao

Research output: Contribution to journalArticle

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Abstract

Optically detected magnetic resonance (ODMR) experiments on epitaxial nitrogen-doped ZnO show spectra due to (i) a shallow donor with the full wurtzite symmetry, (ii) a previously unobserved spin-1/2 center of axial symmetry whose principal axis is tilted slightly away from the crystal c axis, and (iii) a spin–1 triplet state of orthorhombic symmetry. The spin-1/2 center has a g tensor that is of a different form from that of previously reported ODMR spectra for ZnO and is consistent with a model that contains a zinc interstitial, possibly in association with a nitrogen atom. The g values for the triplet state are the average of those for a shallow donor and the spin-1/2 center, and the spectrum is thus assigned to a pair of such centers strongly coupled by a spin-exchange interaction.
Original languageEnglish
Article number115206
JournalPhysical Review B
Volume70
Issue number11
DOIs
Publication statusPublished - 2004

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Magnetic resonance
magnetic resonance
Nitrogen
nitrogen
Exchange interactions
atomic energy levels
Tensors
Zinc
symmetry
Atoms
Crystals
spin exchange
wurtzite
nitrogen atoms
interstitials
zinc
Experiments
tensors
crystals
interactions

Keywords

  • semiconductor doping
  • impurities
  • wide band gap semiconductors
  • semiconductor epitaxial layers
  • photoluminescence
  • microwave-optical double resonance
  • exchange interactions (electron)
  • interstitials
  • II-VI semiconductors
  • nitrogen
  • zinc compounds

Cite this

Optically detected magnetic resonance of epitaxial nitrogen-doped ZnO. / Aliev, G N; Bingham, S J; Wolverson, D; Davies, J J; Makino, H; Ko, H J; Yao, T.

In: Physical Review B, Vol. 70, No. 11, 115206, 2004.

Research output: Contribution to journalArticle

Aliev, G N ; Bingham, S J ; Wolverson, D ; Davies, J J ; Makino, H ; Ko, H J ; Yao, T. / Optically detected magnetic resonance of epitaxial nitrogen-doped ZnO. In: Physical Review B. 2004 ; Vol. 70, No. 11.
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AU - Wolverson, D

AU - Davies, J J

AU - Makino, H

AU - Ko, H J

AU - Yao, T

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KW - semiconductor epitaxial layers

KW - photoluminescence

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