Pressure-induced enhancement of non-polar to polar transition temperature in metallic LiOsO3

  title={Pressure-induced enhancement of non-polar to polar transition temperature in metallic LiOsO3},
  author={E.I. Paredes Aulestia and Yiu Wing Cheung and Yue‐Wen Fang and Jianfeng He and Kazunari Yamaura and Kwing To Lai and Swee K. Goh and Hanghui Chen},
  journal={Applied Physics Letters},
LiOsO3 undergoes a continuous transition from a centrosymmetric R 3 ¯ c structure to a polar R3c structure at Ts = 140 K. By combining transport measurements and first-principles calculations, we find that Ts is enhanced by applied pressures, and it reaches a value of ∼250 K at ∼6.5 GPa. The enhancement is due to the fact that the polar R3c structure of LiOsO3 has a smaller volume than the centrosymmetric R 3 ¯ c structure. Pressure generically favors the structure with the smallest volume, and… 

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Effect of strain and doping on the polar metal phase in LiOsO3

  • A. Narayan
  • Physics, Materials Science
    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2019
Strain emerges as a promising control parameter over polar metallicity in this material and a strain-driven quantum phase transition under tensile strain is uncovered, and intriguing properties that could emerge in the vicinity of this polar to non-polar metal transition are highlighted.

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