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Strongly bound Mott-Wannier Excitons in GeS and GeSe monolayers
Lidia C. Gomes, P. E. Trevisanutto, A. Carvalho +2
The excitonic spectra of single layer GeS and GeSe are predicted by ab initio GW-Bethe Salpeter equation calculations. G 0 W 0 calculations for the band structures find a fundament…
Controlling many-body states by the electric-field effect in a two-dimensional material
Linjun Li, Eoin C. T. O Farrell, Kianping Loh +3
To understand complex physics of a system with strong electron electron interactions, it is ideal to control and monitor its properties while tuning an external electric field appl…
Edge phonons in black phosphorus
H. B. Ribeiro, C. E. P. Villegas, D. A. Bahamon +6
Exfoliated black phosphorus has recently emerged as a new two-dimensional crystal that, due to its peculiar and anisotropic crystalline and electronic band structures, may have pot…
Vacancies and oxidation of 2D group-IV monochalcogenides
Lídia C. Gomes, A. Carvalho, A. H. Castro Neto
Point defects in the binary group-IV monochalcogenide monolayers of SnS, SnSe, GeS, GeSe are investigated using density-functional-theory calculations. Several stable configuration…
Magnetic effects in sulfur-decorated graphene
Choongyu Hwang, Shane A. Cybart, S. J. Shin +13
The interaction between two different materials can present novel phenomena that are quite different from the physical properties observed when each material stands alone. Strong e…