Direct measurement of ferroelectric polarization in a tunable semimetal

Sergio C. de la Barrera; Qingrui Cao; Yang Gao; Yuan Gao; Vineetha S. Bheemarasetty; Jiaqiang Yan; David G. Mandrus; Wenguang Zhu; Di Xiao; Benjamin M. Hunt

doi:10.1038/s41467-021-25587-3

Nature Communications (Sep 2021)

Direct measurement of ferroelectric polarization in a tunable semimetal

Sergio C. de la Barrera,
Qingrui Cao,
Yang Gao,
Yuan Gao,
Vineetha S. Bheemarasetty,
Jiaqiang Yan,
David G. Mandrus,
Wenguang Zhu,
Di Xiao,
Benjamin M. Hunt

Affiliations

Sergio C. de la Barrera: Department of Physics, Carnegie Mellon University
Qingrui Cao: Department of Physics, Carnegie Mellon University
Yang Gao: Department of Physics, Carnegie Mellon University
Yuan Gao: Department of Physics, Carnegie Mellon University
Vineetha S. Bheemarasetty: Department of Physics, Carnegie Mellon University
Jiaqiang Yan: Materials Science and Technology Division, Oak Ridge National Laboratory
David G. Mandrus: Materials Science and Technology Division, Oak Ridge National Laboratory
Wenguang Zhu: International Center for Quantum Design of Functional Materials (ICQD), Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China
Di Xiao: Department of Physics, Carnegie Mellon University
Benjamin M. Hunt: Department of Physics, Carnegie Mellon University

DOI: https://doi.org/10.1038/s41467-021-25587-3
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 9

Abstract

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Free carriers and electrical polarization coexist in ferroelectric metals. Here, the authors use a capacitive method to probe the electronic compressibility of free carriers in a tunable semimetal, extract the polarized contribution, and study the carrier dependence of the ferroelectric state.

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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