Origins of electromagnetic anisotropy in monolayer black phosphorus
arXiv:1908.10837 · doi:10.1103/PhysRevB.100.205418
Abstract
Contrary to empirical observations, lowest-order theory predicts that monolayer black phosphorus ("phosphorene") is completely immune to zigzag-polarized optical excitation at the bandgap energy. Using symmetry arguments, we derive a Hamiltonian under the formalism including higher-order corrections, which is used to show that the experimentally-measured band-gap transition with zigzag polarization is dominated by the third order perturbation in the interband optical matrix element, whereas the effects of spin-orbit interaction are negligible in this material, consistent with a trivial orbital diamagnetic contribution to the -factor.
arXiv comment6 pages, 4 figures
References in corpus (15)
- Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
- 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
- Strain-induced gap modification in black phosphorus
- Quantum Hall Effect in Black Phosphorus Two-dimensional Electron Gas
- Toward a realistic description of multilayer black phosphorus: from approximation to large-scale tight-binding simulations
- Electrons and holes in phosphorene
- Landau levels and magneto-transport property of monolayer phosphorene
- Landau levels of single layer and bilayer phosphorene
- Group theory for structural analysis and lattice vibrations in phosphorene systems
- Spin-Orbit Symmetries of Conduction Electrons in Silicon
- A Comprehensive Study of -Factors, Elastic, Structural and Electronic Properties of III-V Semiconductors using Hybrid-Density Functional Theory
- Van Hove singularity and ferromagnetic instability in phosphorene
- theory for phosphorene: Effective g-factors, Landau levels, and excitons