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[en] Temperature dependence of the local structure around Ti atom in SrTiO3 is investigated from room temperature down to 60 K by extended X-ray absorption fine structure (EXAFS) technique with Ti K-edge. Anharmonic thermal vibration of the Ti-O atomic pair is not negligible. Especially, the anharmonicity increases near the phase transition temperature Tc=110 K. ((orig.))
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