One-dimensional metallic edge states in MoS2

Phys Rev Lett. 2001 Nov 5;87(19):196803. doi: 10.1103/PhysRevLett.87.196803. Epub 2001 Oct 18.


By the use of density functional calculations it is shown that the edges of a two-dimensional slab of insulating MoS2 exhibit several metallic states. These edge states can be viewed as one-dimensional conducting wires, and we show that they can be observed directly using scanning tunneling microscopy for single-layer MoS2 nanoparticles grown on a support.