Stabilizing hidden room-temperature ferroelectricity via a metastable atomic distortion pattern

Jeong Rae Kim; Jinhyuk Jang; Kyoung-June Go; Se Young Park; Chang Jae Roh; John Bonini; Jinkwon Kim; Han Gyeol Lee; Karin M. Rabe; Jong Seok Lee; Si-Young Choi; Tae Won Noh; Daesu Lee

doi:10.1038/s41467-020-18741-w

Nature Communications (Oct 2020)

Stabilizing hidden room-temperature ferroelectricity via a metastable atomic distortion pattern

Jeong Rae Kim,
Jinhyuk Jang,
Kyoung-June Go,
Se Young Park,
Chang Jae Roh,
John Bonini,
Jinkwon Kim,
Han Gyeol Lee,
Karin M. Rabe,
Jong Seok Lee,
Si-Young Choi,
Tae Won Noh,
Daesu Lee

Affiliations

Jeong Rae Kim: Center for Correlated Electron Systems, Institute for Basic Science (IBS)
Jinhyuk Jang: Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)
Kyoung-June Go: Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)
Se Young Park: Center for Correlated Electron Systems, Institute for Basic Science (IBS)
Chang Jae Roh: Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST)
John Bonini: Department of Physics and Astronomy, Rutgers University
Jinkwon Kim: Center for Correlated Electron Systems, Institute for Basic Science (IBS)
Han Gyeol Lee: Center for Correlated Electron Systems, Institute for Basic Science (IBS)
Karin M. Rabe: Department of Physics and Astronomy, Rutgers University
Jong Seok Lee: Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST)
Si-Young Choi: Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)
Tae Won Noh: Center for Correlated Electron Systems, Institute for Basic Science (IBS)
Daesu Lee: Department of Physics, Pohang University of Science and Technology (POSTECH)

DOI: https://doi.org/10.1038/s41467-020-18741-w
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 9

Abstract

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Previous studies are limited to modulate oxygen octahedral rotation angles within the same pattern, and engineering the pattern remains a challenge. Here, the authors demonstrate a designed nonequilibrium oxygen octahedral rotation pattern leads to room-temperature ferroelectricity in CaTiO3.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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