Weak ferroelectric charge transfer in layer-asymmetric bilayers of 2D semiconductors

Autor:	Ferreira, F., Enaldiev, V. V., Fal'ko, V. I., Magorrian, S. J.
Rok vydání:	2021
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Sci. Rep. 11, 13422 (2021)
Druh dokumentu:	Working Paper
DOI:	10.1038/s41598-021-92710-1
Popis:	In bilayers of two-dimensional (2D) semiconductors with stacking arrangements which lack inversion symmetry charge transfer between the layers due to layer-asymmetric interband hybridisation can generate a potential difference between the layers. We analyse bilayers of transition metal dichalcogenides (TMDs) - in particular, WSe$_2$ - for which we find a substantial stacking-dependent charge transfer, and InSe, for which the charge transfer is found to be negligibly small. The information obtained about TMDs is then used to map potentials generated by the interlayer charge transfer across the moir\'e superlattice in twistronic bilayers. Comment: To appear in Scientific Reports
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2103.06093 Zobrazit plný text záznamu View this record from Arxiv