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Two-atom-thin topological crystalline insulators lacking out of plane inversion symmetry
Salvador Barraza-Lopez, Gerardo G. Naumis
A two-dimensional topological crystalline insulator (TCI) with a single unit cell (u.c.) thickness is demonstrated here. To that end, one first shows that tetragonal ( in-plan…
Slippery paraelectric transition metal dichalcogenide bilayers
Juan M. Marmolejo-Tejada, Joseph E. Roll, Shiva Prasad Poudel +2
Traditional ferroelectrics undergo thermally-induced phase transitions whereby their structural symmetry increases. The associated higher-symmetry structure is dubbed {\em paraelec…
Elasticity of 2D ferroelectrics across their paraelectric phase transformation
Joseph E. Roll, John M. Davis, John W. Villanova +1
The mechanical behavior of two-dimensional (2D) materials across 2D phase changes is unknown, and the finite temperature () elasticity of paradigmatic SnSe monolayers -- ferroel…