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Published on: May 29, 2018
Sliding Ferroelectricity in a Bulk Misfit Layer Compound (PbS)_{1.11}VS_{2}
Cinthia Antunes Corrêa1,2, Jiří Volný2, Kateřina Tetalová2
1Czech Academy of Sciences, Institute of Physics, Na Slovance 2, 182 00, Prague 8, Czech Republic.
Abstract:
Twisted heterostructures of two-dimensional crystals can create a moiré landscape, thereby changing the properties of its parent crystals. Here, the alternated stacking of posttransition metal monochalcogenides and transition metal dichalcogenides in misfit layer compound crystals is used as a moiré generator. X-ray diffraction shows the presence of twins with a small twist angle between them. The surface electrical potential from the induced sliding ferroelectricity is seen by using scanning probe microscopy and electron microscopy with domain sizes up to tens of micrometers.
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