Optical mode crossings and the low temperature anomalies of SrTiO3
E. Courtens, B. Hehlen, E. Farhi, A. K. Tagantsev
Abstract
Optical mode crossing is not a plausible explanation for the new broad Brillouin doublet nor for the strong acoustic anomalies observed at low temperatures in SrTiO3. Data presented to support that explanation are also inconclusive.
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