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Slippery Paraelectric Transition-Metal Dichalcogenide Bilayers

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Abstract:

Traditional ferroelectrics undergo thermally-induced phase transitions whereby their structural symmetry increases. The associated higher-symmetry structure is dubbed {\em 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.

Tópico:

2D Materials and Applications

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Citations: 12
12

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Información de la Fuente:

SCImago Journal & Country Rank
FuenteNano Letters
Cuartil año de publicaciónNo disponible
Volumen22
Issue19
Páginas7984 - 7991
pISSNNo disponible
ISSN1530-6984

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