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The European Physical Journal B

, Volume 77, Issue 3, pp 407–411 | Cite as

Structural and magnetic phase transitions in Pr0.15Sr0.85MnO3 at high pressure

  • D. P. Kozlenko
  • N. T. Dang
  • Z. Jirák
  • S. E. KichanovEmail author
  • E. V. Lukin
  • B. N. Savenko
  • L. S. Dubrovinsky
  • C. Lathe
  • C. Martin
Solid State and Materials

Abstract.

The crystal and magnetic structures of Pr0.15Sr0.85MnO3 manganite have been studied by means of powder X-ray and neutron diffraction in the temperature range 10–400 K at high external pressures up to 55 and 4 GPa, respectively. A structural phase transition from cubic to tetragonal phase upon compression was observed, with large positive pressure coefficient of transition temperature dT ct /dP = 28(2) K/GPa. The C-type antiferromagnetic (AFM) ground state is formed below T N 260 K at ambient pressure. While at ambient pressure the structural and magnetic transition temperatures are close, T ct ~ T N , upon compression they become decoupled with T N T ct due to much weaker T N pressure dependence with coefficient dT N /dP = 3.8(1) K/GPa.

Keywords

Manganite Structural Phase Transition Magnetic Phase Transition Magnetic Phase Diagram High External Pressure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • D. P. Kozlenko
    • 1
  • N. T. Dang
    • 1
    • 2
  • Z. Jirák
    • 3
  • S. E. Kichanov
    • 1
    Email author
  • E. V. Lukin
    • 1
  • B. N. Savenko
    • 1
  • L. S. Dubrovinsky
    • 4
  • C. Lathe
    • 5
  • C. Martin
    • 6
  1. 1.Frank Laboratory of Neutron PhysicsDubna Moscow Reg.Russia
  2. 2.Tula State UniversityTulaRussia
  3. 3.Institute of PhysicsPrague 6Czech Republic
  4. 4.Bayerisches Geoinstitute, University BayreuthBayreuthGermany
  5. 5.Helmholtz Centre Potsdam, TelegrafenbergPotsdamGermany
  6. 6.Laboratoire CRISMATCaenFrance

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