Sharee J. McNab, Richard J. Blaikie
Materials Research Society Symposium - Proceedings
Paper
Identification of Fe4+ and Fe5+ charge-transfer photochromic absorption bands in SrTiO3
Abstract
Optical absorption and the enhancement and bleaching of Fe3+ and Fe5+ electron paramagnetic resonance in SrTiO3: Al measured as a function of wavelength and time show that the photochromic absorption bands are due to electron transfer from O2- valence states to Fe4+ and Fe5+. They occur at 2.09 and 2.82 eV for Fe4+ and at 1.99 and 2.53 eV for Fe5+. © 1975.
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