Slippery Paraelectric Transition-Metal Dichalcogenide Bilayers
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Date
2022-10
Journal Title
Journal ISSN
Volume Title
Publisher
American Chemical Society
Abstract
Traditional ferroelectrics undergo thermally induced phase transitions whereby their structural symmetry increases. The associated higher-symmetry structure is dubbed paraelectric. Ferroelectric transition-metal dichalcogenide bilayers have been recently shown to become paraelectric, but not much has been said of the atomistic configuration of such a phase. As discovered through numerical calculations that include molecular dynamics here, their paraelectricity can only be ascribed to a time average of ferroelectric phases with opposing intrinsic polarizations, whose switching requires macroscopically large areas to slip in unison.
Description
This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Nano Letters, copyright © American Chemical Society after peer review. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.2c03373
Keywords
two-dimensional ferroelectrics, two-dimensional paraelectrics, sliding, Brownian motion, honeycomb lattice
Citation
Juan M. Marmolejo-Tejada, Joseph E. Roll, Shiva Prasad Poudel, Salvador Barraza-Lopez, and Martín A. Mosquera Nano Letters 2022 22 (19), 7984-7991 DOI: 10.1021/acs.nanolett.2c03373