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Crystals 2016, 6(11), 143; doi:10.3390/cryst6110143

Dirac Cones in Graphene, Interlayer Interaction in Layered Materials, and the Band Gap in MoS2

Institute of Physics of National Academy of Sciences of Ukraine, Prospect Nauki 46, Kiev 03028, Ukraine
Academic Editors: Cristina E. Giusca and Spyros Yannopoulos
Received: 15 June 2016 / Revised: 14 October 2016 / Accepted: 4 November 2016 / Published: 10 November 2016
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Abstract

The 2D outlook of graphene and similar layers has initiated a number of theoretical considerations of electronic structure that are both interesting and exciting, but applying these ideas to real layered systems, in terms of a model 2D system, must be done with extreme care. In the present review, we will discuss the applicability of the 2D concept with examples of peculiarities of electronic structures and interactions in particular layered systems: (i) Dirac points and cones in graphene; (ii) van der Waals interaction between MoS2 monolayers; and (iii) the issue of a 2D screening in estimates of the band gap for MoS2 monolayers. View Full-Text
Keywords: atomic layers; 2D systems; MoS2; graphene; Dirac cone; electronic structure; band gap; DFT calculations; interlayer interaction; 2D screening atomic layers; 2D systems; MoS2; graphene; Dirac cone; electronic structure; band gap; DFT calculations; interlayer interaction; 2D screening
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yakovkin, I.N. Dirac Cones in Graphene, Interlayer Interaction in Layered Materials, and the Band Gap in MoS2. Crystals 2016, 6, 143.

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