Disorder effect on the anisotropic resistivity of phosphorene determined by a tight-binding model
arXiv:1608.06633 · doi:10.1103/PhysRevB.94.165419
Abstract
In this work we develop a compact multi-orbital tight-binding model for phosphorene that accurately describes states near the main band gap. The model parameters are adjusted using as reference the band structure obtained by a density-functional theory calculation with the hybrid HSE06 functional. We use the optimized tight-binding model to study the effects of disorder on the anisotropic transport properties of phosphorene. In particular, we evaluate how the longitudinal resistivity depends on the lattice orientation for two typical disorder models: dilute scatterers with high potential fluctuation amplitudes, mimicking screened charges in the substrate, and dense scatterers with lower amplitudes, simulating weakly bounded adsorbates. We show that the intrinsic anisotropy associated to the band structure of this material, although sensitive to the type and intensity of the disorder, is robust.
11 pages, 8 figures
References in corpus (13)
- The electronic properties of graphene
- Effective Passivation of Exfoliated Black Phosphorus Transistors against Ambient Degradation
- Strain-Engineering Anisotropic Electrical Conductance of Phosphorene and Few-Layer Black Phosphorus
- Semiconducting layered blue phosphorus: A computational study
- Environmental instability of few-layer black phosphorus
- Tunable optical properties of multilayers black phosphorus thin films
- Quasiparticle band structure and tight-binding model for single- and bilayer black phosphorus
- Oxygen defects in phosphorene
- Accessing the transport properties of pristine few-layer black phosphorus by van der Waals passivation in inert atmosphere
- Electrons and holes in phosphorene
- Transport and Optical Properties of Single- and Bilayer Black Phosphorus with Defects
- Theoretical Study of Phosphorene Tunneling Field Effect Transistors
- Edge State and Intrinsic Hole Doping in Bilayer Phosphorene