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. and Yao, T., 2004. Optically detected magnetic resonance of epitaxial nitrogen-doped ZnO. Physical Review B, 70 (11), 115206.
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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.
|Creators||Aliev, G. N., Bingham, S. J., Wolverson, D., Davies, J. J., Makino, H., Ko, H. J. and Yao, T.|
|Uncontrolled 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|
|Departments||Faculty of Science > Physics|
|Additional Information||ID number: ISI:000224209500039|
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