High pressure antiferrodistortive phase transition in mixed crystals of EuTiO3 and SrTiO3
Source abstract
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.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · High-pressure geophysics and materials · Electronic and Structural Properties of Oxides
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Affiliations
Université Paris Diderot-Paris 7 1 Laboratoire Matériaux et Phénoménes Quantiques (UMR 7162 CNRS), , Paris Cedex 13, France
ID27 Beamline 2 , European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
Sapienza University of Rome 3 , Physics Dept., Piazzale Aldo Moro 5, 00185 Roma, Italy
National Technical University of Athens 4 Department of Physics, , GR-15780 Athens, Greece
Max-Planck-Institute for Solid State Research 5 , Heisenbergstrasse 1, D-70569 Stuttgart, Germany
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