Dirac spectrum in gated multilayer black phosphorus nanoribbons

Abstract

We investigate the effects of a perpendicular electric field applied to multilayer phosphorene nanoribbons with zigzag and armchair edges. Within the context of the tight-binding model, we explore the electronic properties of these systems giving emphasis to the appearance of Dirac-like spectra, a transition that occurs when the gate density associated with the applied displacement field is greater than the critical value $n_c$. We show that the confinement properties and the screening effects in such systems play an important role on the determination of $n_c$, suggesting a scheme to determine the thickness, width and edge orientation of multilayered phosphorene nanoribbons. We also explore how this transition affects the electronic transport properties of such systems.

6 pages, 5 figures

References in corpus (23)

• Black phosphorus field-effect transistors
• Phosphorene: A New 2D Material with High Carrier Mobility
• Tunable Band Gap and Anisotropic Optical Response in Few-layer Black Phosphorus
• Electronic States of Graphene Nanoribbons
• Broadband Linear-Dichroic Photodetector in a Black Phosphorus Vertical p-n Junction
• Kwant: a software package for quantum transport
• Observation of tunable bandgap and anisotropic Dirac semimetal state in black phosphorus
• Black phosphorus: narrow gap, wide applications
• Tunable optical properties of multilayers black phosphorus thin films
• Electric Field Induced Topological Phase Transition in Two-Dimensional Few-layer Black Phosphorus
• Toward a realistic description of multilayer black phosphorus: from $GW$ approximation to large-scale tight-binding simulations
• Phosphorene nanoribbons
• Landau levels of single layer and bilayer phosphorene
• Emergence of Two-Dimensional Massless Dirac Fermions, Chiral Pseudospins, and Berry's Phase in Potassium Doped Few-Layer Black Phosphorus
• Quantum-confinement and Structural Anisotropy result in Electrically-Tunable Dirac Cone in Few-layer Black Phosphorous
• Two-Dimensional Dirac Fermions Protected by Space-Time Inversion Symmetry in Black Phosphorus
• Topological Protected Dirac Cones in Compressed Bulk Black Phosphorus
• Quantum Hall effect and semiconductor to semimetal transition in biased black phosphorus
• Multilayers black phosphorus: from tight-binding to continuum description
• Boundary conditions for phosphorene nanoribbons in the continuum approach
• Tuning the electronic properties of gated multilayer phosphorene: A self-consistent tight-binding study
• Substrate effects on the exciton fine structure of black phosphorus quantum dots
• Magnetoelectronic properties of normal and skewed phosphorene nanoribbons

Cited by in corpus (2)

• Signatures of sub-band excitons in few-layer black phosphorus
• Influence of Edge Functionalization on Electronic and Optical Properties of Armchair Phosphorene Nanoribbons: a First-Principles Study