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Giant Piezoelectricity in Monolayer Group IV Monochalcogenides: SnSe, SnS, GeSe and GeS
Ruixiang Fei, Wenbin Li, Ju Li +1
We predict enormous piezoelectric effects in intrinsic monolayer group IV monochalcogenides (MX, M=Sn or Ge, X=Se or S), including SnSe, SnS, GeSe and GeS. Using first-principle si…
Does P-type Ohmic Contact Exist in WSe2-metal Interfaces?
Yangyang Wang, Ruoxi Yang, Ruge Quhe +9
Formation of low-resistance metal contacts is the biggest challenge that masks the intrinsic exceptional electronic properties of 2D WSe2 devices. We present the first comparative…
Monolayer Phosphorene-Metal Interfaces
Yuanyuan Pan, Yangyang Wang, Meng Ye +9
Recently, phosphorene electronic and optoelectronic prototype devices have been fabricated with various metal electrodes. We systematically explore for the first time the contact p…
Silicene Spintronics
Yangyang Wang, Ruge Quhe, Dapeng Yu +2
Spintronics involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. The fascinating spin-resolved properties of graphene motivate n…
Piezoelectricity in Two-Dimensional Group III Monochalcogenides
Wenbin Li, Ju Li
We find that several layer-phase group-III monochalcogenides, including GaS, GaSe and InSe, are piezoelectric in the monolayer form. First-principles calculations reveal that the p…
Deformation-Driven Diffusion and Plastic Flow in Two-Dimensional Amorphous Granular Pillars
Wenbin Li, Jennifer M. Rieser, Andrea J. Liu +2
We report a combined experimental and simulation study of deformation-induced diffusion in compacted two-dimensional amorphous granular pillars, in which thermal fluctuations play…