Optically detected magnetic resonance of the zinc vacancy in ZnS |
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Authors: | KM Lee KP ODonnell GD Watkins |
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Institution: | Department of Physics and Sherman Fairchild Laboratory Lehigh University, Bethlehem, PA 18015, Pennsylvania USA |
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Abstract: | Optical detection of magnetic resonance (ODMR) is reported for the single negative charge state, VZn?, of the isolated zinc vacancy in ZnS. Produced by 2.5 MeV electron irradiation, it is detected in a distant donor-acceptor (DA) pair luminescent band at 570 nm in which the vacancy acts as the acceptor. Excitation and emission spectral dependences of the VZn? ODMR signals are analyzed in terms of a configurational coordinate model. We conclude that the double acceptor level (VZn=/VZn?) is located ~1.1 eV from the valence band edge and that the trigonal Jahn-Teller relaxation energy for the VZn? state is ~0.5 eV. |
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