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.
Highlights
Bulk electronic structure of Experiment and theoryWe report a detailed high pressure study on Eu1-xSrxTiO3 polycrystalline samples using synchrotron x-ray diffraction
Perovskite materials of the ABO3 general formula are often sensitive to structural changes with temperature and pressure because of the tilting of BO6 octahedra
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
Summary
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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