Disorder effects in the fluorescence spectra of Eu3+ in langatate (La3Ga5.5Ta0.5O14) crystals
Source abstract
Abstract
Abstract The nature of luminescence centers formed by Eu 3+ in the partially disordered crystal langatate (La 3 Ga 5.5 Ta 0.5 O 14 ) is investigated using fluorescence spectroscopy. In the low-temperature fluorescence spectra three nonequivalent luminescent centers can be evidenced. This fact can be explained considering the perturbations induced at the Eu 3+ site by the nonequivalent configurations produced by Ga 3+ and Ta 5+ randomly placed in the nearest two octahedral positions.
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Research context
OpenAlex topics: Acoustic Wave Resonator Technologies · Luminescence Properties of Advanced Materials · Photorefractive and Nonlinear Optics
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References (12)
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