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Enhanced piezoelectricity and modified dielectric screening of 2-D group-IV monochalcogenides
Lídia C. Gomes, A. Carvalho, A. H. Castro Neto
We use first principles calculations to investigate the lattice properties of group-IV monochalcogenides. These include static dielectric permittivity, elastic and piezoelectric te…
Evidence for Fast Interlayer Energy Transfer in MoSe2/WS2 Heterostructures
Daichi Kozawa, Alexandra Carvalho, Ivan Verzhbitskiy +6
Strongly bound excitons confined in two-dimensional (2D) semiconductors are dipoles with a perfect in-plane orientation. In a vertical stack of semiconducting 2D crystals, such in-…
Valleytronics in Tin (II) Sulfide
A. S. Rodin, L. C. Gomes, A. Carvalho +1
Tin (II) sulfide (SnS) is a layered mineral found in nature. In this paper, we study the two-dimensional form of this material using a combination of \emph{ab initio} calculation a…