%0 Journal Article
%T Strain-dependent modulation of conductivity in single layer transition-metal dichalcogenides
%A Mahdi Ghorbani-Asl
%A Stefano Borini
%A Agnieszka Kuc
%A Thomas Heine
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevB.87.235434
%X Quantum conductance calculations on the mechanically deformed monolayers of MoS$_2$ and WS$_2$ were performed using the non-equlibrium Green's functions method combined with the Landauer-B\"{u}ttiker approach for ballistic transport together with the density-functional based tight binding (DFTB) method. Tensile strain and compression causes significant changes in the electronic structure of TMD single layers and eventually the transition semiconductor-metal occurs for elongations as large as ~11% for the 2D-isotropic deformations in the hexagonal structure. This transition enhances the electron transport in otherwise semiconducting materials.
%U http://arxiv.org/abs/1301.3469v2