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1. High pressure antiferrodistortive phase transition in mixed crystals of EuTiO3 and SrTiO3

Author

Paraskevas Parisiades, Francesco Saltarelli, Efthymios Liarokapis, Jürgen Köhler, and Annette Bussmann-Holder

Subjects
Physics, QC1-999
Abstract

We report a detailed high pressure study on Eu1−xSrxTiO3 polycrystalline samples using synchrotron x-ray diffraction. We have observed a second-order antiferrodistortive phase transition for all doping levels which corresponds to the transition that has been previously explored as a function of temperature. The analysis of the compression mechanism by calculating the lattice parameters, spontaneous strains and tilt angles of the TiO6 octahedra leads to a high pressure phase diagram for Eu1−xSrxTiO3.

Published
2016
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