Polar and antipolar polymorphs of metastable perovskite<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>BiFe</mml:mtext><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msub></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>Sc</mml:mtext><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msub></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>O</mml:mtext><mml:mn>3</mml:mn></mml:msub></mml:math>

D. Khalyavin, D.; N. Salak, Andrei; M. Olekhnovich, N.; V. Pushkarev, A.; V. Radyush, Yu.; Manuel, Pascal; P. Raevski, I.; L. Zheludkevich, Mikhail; Ferreira, M.G.S.

doi:10.1103/physrevb.89.174414

Public

Polar and antipolar polymorphs of metastable perovskite<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>BiFe</mml:mtext><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msub></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>Sc</mml:mtext><mml:mrow><mml:mn>0.5</mml:mn></mml:mrow></mml:msub></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>O</mml:mtext><mml:mn>3</mml:mn></mml:msub></mml:math>

Shared by NobleBlocks on May 12, 2014 • 12:00 AM UTC

Authors:

D. D. Khalyavin

Andrei N. Salak

N. M. Olekhnovich

Abstract

A metastable perovskite ${\text{BiFe}}_{0.5}$${\text{Sc}}_{0.5}$${\text{O}}_{3}$ synthesized under high-pressure (6 GPa) and high-temperature (1500 K) conditions was obtained in two different polymorphs, antipolar $Pnma$ and polar $Ima2$, through an irreversible behavior under a heating/cooling ther...

Subject

Metastability

Antiferromagnetism

Perovskite (structure)

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