Strain-induced pseudomagnetic field in Dirac semimetal borophene

Abstract

A tight-binding model of 8-Pmmn borophene, a two-dimensional boron crystal, is developed. We confirm that the crystal hosts massless Dirac fermions and the Dirac points are protected by symmetry. Strain is introduced into the model, and it is shown to induce a pseudomagnetic field vector potential and a scalar potential. The dependence of the potentials on the strain tensor is calculated. The physical effects controlled by pseudomagnetic field are discussed.

7 pages, 4 figures. v2: added references and extended the discussion

References in corpus (5)

• The Rare Two-Dimensional Materials with Dirac Cones
• Tilted anisotropic Dirac cones in quinoid-type graphene and alpha-(BEDT-TTF)_2I_3
• Symmetry-based approach to electron-phonon interactions in graphene
• Generation of pure bulk valley current in graphene
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• Review of borophene and its potential applications
• Effect of electron-hole asymmetry on optical conductivity in 8-Pmmn borophene
• The $8Pmmn$ borophene sheet: A solid-state platform for space-time engineering
• Optical properties of massive anisotropic tilted Dirac systems
• Signature of tilted Dirac cones in Weiss oscillations of $8-Pmmn$ borophene
• Anisotropic longitudinal optical conductivities of tilted Dirac bands in 1T${}^{\prime }$-MoS${}_2$
• Anomalous caustics and Veselago focusing in 8-Pmmn borophene p-n junctions with arbitrary junction directions
• Hall Viscosity and the Acoustic Faraday Effect
• Single Magnetic Impurity in Tilted Dirac Surface States
• Floquet spectrum and electronic transitions of tilted anisotropic Dirac materials under electromagnetic radiation: monodromy matrix approach
• Magnetic Phases in Periodically Rippled Graphene
• A Spin Field Effect Transistor Based on a Strained Two Dimensional Layer of a Weyl Semimetal