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Title: Pressure-mediated structural transitions in bulk EuTiO 3

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [4];  [4];  [5];  [6];  [3];  [7]
  1. Delft Univ. of Technology (Netherlands)
  2. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  3. RIKEN, Hyogo (Japan)
  4. European Synchrotron Radiation Facility (ESRF), Grenoble (France)
  5. Univ. Munster (Germany)
  6. Univ. of Bayreuth (Germany)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The high pressure structural phase diagram of EuTiO3 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.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1470847
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 5 Vol. 98; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Multicaloric effect in multiferroic EuTiO3 thin films journal February 2020

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