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Optically Detected Magnetic Resonance of Zinc Interstitials and Frenkel Pairs in ZnSe

Published online by Cambridge University Press:  26 February 2011

G. D. Watkins ,
F. Rong ,
W. A. Barry  and
J. F. Donegan
G. D. Watkins
Affiliation:
Department of Physics, Sherman Fairchild Laboratory, Lehigh University, Bethlehem, PA 18015, U.S.A
F. Rong
Affiliation:
Department of Physics, Sherman Fairchild Laboratory, Lehigh University, Bethlehem, PA 18015, U.S.A
W. A. Barry
Affiliation:
Department of Physics, Sherman Fairchild Laboratory, Lehigh University, Bethlehem, PA 18015, U.S.A
J. F. Donegan
Affiliation:
Department of Physics, Sherman Fairchild Laboratory, Lehigh University, Bethlehem, PA 18015, U.S.A
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Abstract

Optical detection of magnetic resonance (ODMR) is reported for ZnSe irradiated by 2.5 MeV electrons in situ at 4.2K. Interstitial zinc atoms are detected in both isolated form and paired with zinc vacancies (Frenkel pairs) of many resolved discrete separations. The isolated interstitial produces a deep second donor state (+/++) at ∼Ec -0.8 eV and its activation energy for migration is estimated to be ∼0.6–0.7 eV. The Frenkel pairs give rise to efficient localized donor-acceptor recombination luminescence and the exchange interactions between the electron and hole on the two partners are measured directly by ODMR.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 104 , 1987 , 3
Copyright
Copyright © Materials Research Society 1988

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References

Refrences

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