Sliding ferroelectricity in a bulk misfit layer compound (PbS)$_{1.18}$VS$_2$

Cinthia Antunes Corrêa; Jiří Volný; Kateřina Tetalová; Klára Uhlířová; Václav Petříček; Martin Vondráček; Jan Honolka; Tim Verhagen

doi:10.1103/PhysRevLett.134.056202

Sliding ferroelectricity in a bulk misfit layer compound (PbS)$_{1.18}$VS$_2$

Materials Science 2025-02-11 v1 Mesoscale and Nanoscale Physics

Authors: Cinthia Antunes Corrêa , Jiří Volný , Kateřina Tetalová , Klára Uhlířová , Václav Petříček , Martin Vondráček , Jan Honolka , Tim Verhagen

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Abstract

Twisted heterostructures of two-dimensional crystals can create a moir\'{e} landscape, which can change the properties of it's parent crystals. However, the reproducibility of manual stacking is far from perfect. Here, the alternated stacking of post-transition metal monochalcogenides and transition metal dichalcogenides in misfit layer compound crystals is used as a moir\'{e} generator. Using X-ray diffraction, the presence of twins with a well-defined small twist angle between them is shown. Due to the twist, the surface electrical potential from the induced ferroelectricity is observed using scanning probe microscopy and electron microscopy.

Keywords

sliding ferroelectricity misfit layer compound moire twist angle scanning probe microscopy pbs-vs2

Cite

@article{arxiv.2306.14446,
  title  = {Sliding ferroelectricity in a bulk misfit layer compound (PbS)$_{1.18}$VS$_2$},
  author = {Cinthia Antunes Corrêa and Jiří Volný and Kateřina Tetalová and Klára Uhlířová and Václav Petříček and Martin Vondráček and Jan Honolka and Tim Verhagen},
  journal= {arXiv preprint arXiv:2306.14446},
  year   = {2025}
}

Sliding ferroelectricity in a bulk misfit layer compound (PbS)$_{1.18}$VS$_2$

Abstract

Keywords

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