Pressure-mediated structural transitions in bulk
The high pressure structural phase diagram of EuTiO 3 is revisited by means of single crystal x-ray diffraction at pressures below 30GPa. We report a transition at about 3GPa with a surprisingly small lattice distortion. At 23GPa we have detected a yet unknown transition into a new orthorhombic phase (space group Ibam). Combining our observations on structures obtained on single crystals and polycrystalline samples with complementary methods, such as electrical resistivity and nuclear forward scattering of synchrotron radiation measured on polycrystalline samples, we address issues relevant to chemistry and disorder.
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- Delft Univ. of Technology (Netherlands)
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- RIKEN, Hyogo (Japan)
- European Synchrotron Radiation Facility (ESRF), Grenoble (France)
- Univ. Munster (Germany)
- Univ. of Bayreuth (Germany)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Grant/Contract Number:
- AC05-00OR22725
- Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Research Org:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org:
- USDOE
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
- OSTI Identifier:
- 1470847
- Alternate Identifier(s):
- OSTI ID: 1463757