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

@article{ParedesAulestia2018PressureinducedEO,
  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},
  year={2018}
}
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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    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2019
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References

SHOWING 1-10 OF 39 REFERENCES

Origin of polar distortion in LiNbO 3 -type "ferroelectric" metals: Role of A-site instability and short-range interactions

Since conduction electrons of a metal screen effectively the local electric dipole moments, it was widely believed that the ferroelectric-like distortion cannot occur in metals. Recently, metallic…

The effects of high pressure on the ferroelectric properties of nano-BaTiO3 ceramics

Temperature dependence of the dielectric constant of nano-grain BaTiO3 (BTO) ceramic has been investigated under hydrostatic pressure up to 5 GPa. We show that the paraelectric-ferroelectric phase…

A ferroelectric-like structural transition in a metal.

A centrosymetric to non-centrosymmetric (R3c) transition in metallic LiOsO3 that is structurally equivalent to the ferroelectric transition of LiNbO3 is reported, which establishes a new class of materials whose properties may differ from those of normal metals.

Designing a robustly metallic noncenstrosymmetric ruthenate oxide with large thermopower anisotropy

It is demonstrated that the electronic structure is unaffected by the inclusion of spin-orbit interactions, and that cation-ordered SrCaRu2O6 exhibits a large thermopower anisotropy derived from its polar structure.

Dual nature of the ferroelectric and metallic state in LiOsO 3

Using density functional theory we investigate the lattice instability and electronic structure of recently discovered ferroelectric metal LiOsO$_3$. We show that the ferroelectric-like lattice…

Cooperative Couplings between Octahedral Rotations and Ferroelectricity in Perovskites and Related Materials.

It is shown that a dual nature of the FE-AFD coupling, which turns from competitive to cooperative as the AFD mode strengthens, occurs in numerous perovskite oxides, and it is predicted that such a novel form of ferroelectricity leads to atypical behaviors.

Polar metals by geometric design

The quantum mechanical design and experimental realization of room-temperature polar metals in thin-film ANiO3 perovskite nickelates using a strategy based on atomic-scale control of inversion-preserving (centric) displacements is described and it is predicted that the geometric stabilization approach will provide novel avenues for realizing new multifunctional materials with unusual coexisting properties.

Prediction of a native ferroelectric metal

It is shown, by means of first-principles simulations, that native metallicity and ferroelectricity coexist in the layered perovskite Bi5Ti5O17, and can sustain a sizable potential drop along the polar direction, as needed to reverse its polarization by an external bias.

Ultrafast Electric Field Pulse Control of Giant Temperature Change in Ferroelectrics.

A general framework to understand electric-field-induced temperature change is offered and the opportunities of electric field engineering for controlled design of fast and efficient cooling technology are highlighted.

Effect of high pressure on multiferroic BiFeO 3

We report experimental evidence for pressure instabilities in the model multiferroic ${\text{BiFeO}}_{3}$ and, namely, reveal two structural phase transitions around 3.5 and 10 GPa by using…