Anisotropic carrier mobility of distorted Dirac cones: theory and application

Abstract

We have theoretically investigated the intrinsic carrier mobility in semimetals with distorted Dirac cones under both longitudinal and transverse acoustic phonon scattering. An analytic formula for the carrier mobility was obtained. It shows that tilting significantly reduces the mobility. The theory was then applied to 8B-Pmmn borophene and borophane (fully hydrogenated borophene), both of which have tilted Dirac cones. The predicted carrier mobilities in 8B-Pmmn borophene at room temperature are both higher than that in graphene. For borophane, despite its superhigh Fermi velocity, the carrier mobility is lower than that in 8B-Pmmn owing to its smaller elastic constant under shear strain.

arXiv comment24 pages, 5 figures, 1 table

References in corpus (23)

• Electric Field Effect in Atomically Thin Carbon Films
• Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
• Ultrahigh electron mobility in suspended graphene
• Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
• Type-II Weyl Semimetals
• Experimental Realization of Two-Dimensional Boron Sheets
• Acoustic phonon scattering limited carrier mobility in 2D extrinsic graphene
• Semimetallic Two-Dimensional Boron Allotrope with Massless Dirac Fermions
• Borophene as an extremely high capacity electrode material for Li-ion and Na-ion batteries
• The Rare Two-Dimensional Materials with Dirac Cones
• Mobility anisotropy of two-dimensional semiconductors
• Prediction of phonon-mediated superconductivity in borophene
• Flexural phonons in free-standing graphene
• The Ideal Tensile Strength and Phonon Instability of Borophene
• Direct Evidence of Metallic Bands in a Monolayer Boron Sheet
• Mechanical responses of borophene sheets: A first-principles study
• Electronic properties of 8-Pmmn borophene
• Electron-Phonon Interactions and the Intrinsic Electrical Resistivity of Graphene
• Strain-induced pseudomagnetic field in Dirac semimetal borophene
• High anisotropy of fully hydrogenated borophene
• Two-Dimensional Magnetic Boron
• The two-dimensional Brillouin zone of uniaxially strained graphene
• Mechanical properties of borophene films: A reactive molecular dynamics investigation

Cited by in corpus (15)

• Electronic and mechanical properties of few-layer borophene
• Raman Spectra and Strain Effects in Bismuth Oxychalcogenides
• Oblique Klein tunneling in 8-Pmmn borophene p-n junctions
• How does the electric current propagate through the fully-hydrogenated borophene?
• Large enhancement of conductivity in Weyl semimetals with tilted cones: Pseudorelativity and linear response
• Anomalous caustics and Veselago focusing in 8-Pmmn borophene p-n junctions with arbitrary junction directions
• Thermoelectric transport properties of borophane
• Anomalous heat flow in 8-$Pmmn$ borophene with tilted Dirac cones
• Tilted Dirac cones and asymmetric conical diffraction in photonic Lieb-kagome lattices
• Carbon nanotube array as a van der Waals two-dimensional hyperbolic material
• Mapping borophene onto graphene: Quasi-exact solutions for guiding potentials in tilted Dirac cones
• Tunable wavevector filtering in borophane based normal metal-barrier-normal metal junctions
• Phase-space representation of coherent states generated through SUSY QM for tilted anisotropic Dirac materials
• Magneto-thermoelectricty of anisotropic two-dimensional materials
• Designer gapped and tilted Dirac cones in lateral graphene superlattices