Determination of the nature of the optical gap of SrTiO3
作者： M. Capizzi , A. Frova
DOI: 10.1007/BF02738147
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摘要: Absorption and electroabsorption (EA) measurements allow a description of the valence conduction bands SrTiO3, in theΔ-direction. This type information has been obtained from analysis structure absorption tail, which is observed low-temperature spectra. Urbach’s behavior appears above 160 °K experimentally followed up to 514 °K. Possible mechanisms for evolution tail with temperature are discussed.
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