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

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Summary

Bulk electronic structure of Experiment and theory

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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RESULTS AND DISCUSSION
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