Tunable effective masses of magneto-excitons in two-dimensional materials
arXiv:2105.13867 · doi:10.1016/j.ssc.2021.114371
Abstract
Excitonic properties of GeH and SnH, also known as Xanes, are investigated within the effective mass model. A perpendicularly applied magnetic field induces a negative shift on the exciton center-of-mass kinetic energy that is approximately quadratic with its momentum, thus pushing down the exciton dispersion curve and flattening it. This can be interpreted as an increase in the effective mass of the magneto-exciton, tunable by the field intensity. Our results show that in low effective mass two-dimensional semiconductors, such as Xanes, the applied magnetic field allows one to tune the magneto-exciton effective mass over a wide range of values.
References in corpus (25)
- Graphane: a two-dimensional hydrocarbon
- Tunable Photoluminescence of Monolayer MoS2 via Chemical Doping
- Polaritons in layered 2D materials
- The Computational 2D Materials Database: High-Throughput Modeling and Discovery of Atomically Thin Crystals
- Theory of Neutral and Charged Excitons in Monolayer Transition Metal Dichalcogenides
- Exciton Diamagnetic Shifts and Valley Zeeman Effects in Monolayer WS and MoS to 65 Tesla
- Revealing exciton masses and dielectric properties of monolayer semiconductors with high magnetic fields
- Exciton band structure of monolayer MoS2
- Magneto-Optics of Exciton Rydberg States in a Monolayer Semiconductor
- Graphene to Graphane: A Theoretical Study
- Simple Screened Hydrogen Model of Excitons in Two-Dimensional Materials
- Dissociation of two-dimensional excitons in monolayer WSe2
- Anisotropic exciton Stark shift in black phosphorus
- Luminescent emission of excited Rydberg excitons from monolayer WSe2
- Silicane and germanane: tight-binding and first-principles studies
- Spatial extent of the excited exciton states in WS monolayers from diamagnetic shifts
- Excitons, trions, and biexcitons in transition metal dichalcogenides: magnetic field dependence
- Stark shift of excitons and trions in two-dimensional materials
- On the Optical Properties of Excitons in Buckled 2D Materials in an External Electric Field
- Magneto-Stark and Zeeman effect as origin of second harmonic generation of excitons in CuO
- Exciton effective mass enhancement in coupled quantum wells in electric and magnetic fields
- Giant permanent dipole moment of 2D excitons bound to a single stacking fault
- Excitons in Phosphorene: A Semi-Analytical Perturbative Approach
- Anisotropic Stark shift, field-induced dissociation, and electroabsorption of excitons in phosphorene
- Influence of magnetic quantum confined Stark effect on the spin lifetime of indirect excitons