Slippery paraelectric transition-metal dichalcogenide bilayers

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 [1], but not much has been said of the atomistic configuration of such a phase. In this presentation, numerical calculations that include molecular dynamics showcase this paraelectric atomistic structure [2].