Absorption spectra of ZnO:Li thin films in the region of a phase transition |
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| Authors: | V B Kapustyanyk B I Turko M R Panasyuk G A Lubochkova D L Voznyuk |
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| Institution: | (1) Institute of Minerals and Materials Technology, Bhubaneswar, 751 013, India |
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| Abstract: | We have studied the temperature variation of the intrinsic absorption edge for ZnO:Li films obtained by high-frequency magnetron
sputtering. We have observed anomalous behavior of the optical bandgap width in the vicinity of the temperature of a ferroelectric
phase transition at T = 327 K. For the first time, we have observed the appearance of this phase transition on the thermally
stimulated depolarization (TSD) current curves. |
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