Magnetoexcitons in transition-metal dichalcogenides monolayers, bilayers, and van der Waals heterostructures

Abstract

We study direct and indirect magnetoexcitons in Rydberg states in monolayers and heterostructures of transition-metal dichalcogenices (TMDCs) in an external magnetic field, applied perpendicular to the monolayer or heterostructures. We calculate binding energies of magnetoexcitons for the Rydberg states 1$s$, 2$s$, 3$s$, and 4$s$ by numerical integration of the Schrödinger equation using the Rytova-Keldysh potential for direct magnetoexcitons and both the Rytova-Keldysh and Coulomb potentials for indirect magnetoexcitons. Latter allows understanding the role of screening in TMDCs heterostructures. We report the magnetic field energy contribution to the binding energies and diamagnetic coefficients (DMCs) for direct and indirect magnetoexcitons. The tunability of the energy contribution of direct and indirect magnetoexcitons by the magnetic field is demonstrated. It is shown that binding energies and DMCs of indirect magnetoexcitons can be manipulated by the number of hBN layers. Therefore, our study raises the possibility of controlling the binding energies of direct and indirect magnetostrictions in TMDC monolayers, bilayers and heterostructures using magnetic field and opens an additional degree of freedom to tailor the binding energies and DMCs for heterostructures by varying the number of hBN sheets between TMDC layers. The calculations of the binding energies and DMCs of indirect magnetoexcitons in TMDC heterostructures are novel and can be compared with the experimental results when they will be available.

arXiv comment21 pages, 9 figures, 6 tables. arXiv admin note: text overlap with arXiv:2011.03093

References in corpus (73)

• Atomically thin MoS2: A new direct-gap semiconductor
• 2D materials and van der Waals heterostructures
• Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS2
• Atomically thin p-n junctions with van der Waals heterointerfaces
• Excitons in atomically thin transition metal dichalcogenides
• Observation of Long-Lived Interlayer Excitons in Monolayer MoSe2-WSe2 Heterostructures
• Signatures of moiré-trapped valley excitons in MoSe${}_2$/WSe${}_2$ heterobilayers
• Electroluminescence and photocurrent generation from atomically sharp WSe2/MoS2 heterojunction p-n diodes
• Optical signature of symmetry variations and spin-valley coupling in atomically thin tungsten dichalcogenides
• k.p theory for two-dimensional transition metal dichalcogenide semiconductors
• Theory of Neutral and Charged Excitons in Monolayer Transition Metal Dichalcogenides
• Magnetic Control of Valley Pseudospin in Monolayer WSe2
• Valley Zeeman Effect in Elementary Optical Excitations of a Monolayer WSe2
• Breaking of valley degeneracy by magnetic field in monolayer MoSe2
• Excitonic linewidth approaching the homogeneous limit in MoS2 based van der Waals heterostructures : accessing spin-valley dynamics
• High-temperature superfluidity with indirect excitons in van der Waals heterostructures
• Valley Splitting and Polarization by the Zeeman Effect in Monolayer MoSe2
• Electrical control of interlayer exciton dynamics in atomically thin heterostructures
• Large spin splitting in the conduction band of transition metal dichalcogenide monolayers
• Quantum engineering of transistors based on 2D materials heterostructures
• Long-lived direct and indirect interlayer excitons in van der Waals heterostructures
• Electronic and Thermoelectric Properties of Few-Layer Transition Metal Dichalcogenides
• Spin-Layer Locking Effects in Optical Orientation of Exciton Spin in Bilayer WSe2
• Exciton Diamagnetic Shifts and Valley Zeeman Effects in Monolayer WS${}_2$ and MoS${}_2$ to 65 Tesla
• Revealing exciton masses and dielectric properties of monolayer semiconductors with high magnetic fields
• Binding energies of exciton complexes in transition metal dichalcogenides and effect of dielectric environment
• Splitting between Bright and Dark excitons in Transition Metal Dichalcogenide Monolayers
• Magneto-Optics of Exciton Rydberg States in a Monolayer Semiconductor
• Momentum-space indirect interlayer excitons in transition metal dichalcogenide van der Waals heterostructures
• Dark excitons in transition metal dichalcogenides
• Interlayer exciton dynamics in a dichalcogenide monolayer heterostructure
• The dielectric impact of layer distances on exciton and trion binding energies in van der Waals heterostructures
• Indirect excitons in van der Waals heterostructures at room temperature
• The Coulomb interaction in monolayer transition-metal dichalcogenides
• Interlayer excitons in bilayer MoS2 with strong oscillator strength up to room temperature
• Exciton g-factors of van der Waals heterostructures from first principles calculations
• Excitonic valley effects in monolayer WS${}_2$ under high magnetic fields
• Superconductivity and other phase transitions in a hybrid Bose-Fermi mixture formed by a polariton condensate and an electron system in two dimensions
• Optical spectroscopy of excited exciton states in MoS2 monolayers in van der Waals heterostructures
• The role of momentum-dark excitons in the elementary optical response of bilayer WSe${}_2$
• Binding energies and spatial structures of small carrier complexes in monolayer transition metal dichalcogenides via diffusion Monte Carlo
• Screened potential of a point charge in a thin film
• Giant Valley-Zeeman Splitting from Spin-Singlet and Spin-Triplet Interlayer Excitons in WSe2/MoSe2 Heterostructure
• High-temperature superfuidity of the two-component Bose gas in a TMDC bilayer
• Localized bright luminescence of indirect excitons and trions in MoSe${}_2$/WSe${}_2$ van der Waals heterostructure
• Interlayer excitons in transition metal dichalcogenide heterostructures
• Interlayer excitons in van der Waals heterostructures: Binding energy, Stark shift, and field-induced dissociation
• Observation of Inter-layer Excitons in MoSe2 Single Crystals
• Magneto-photoluminescence of exciton Rydberg states in monolayer WSe${}_2$
• Exciton states in monolayer MoSe2 and MoTe2 probed by upconversion spectroscopy
• Luminescent emission of excited Rydberg excitons from monolayer WSe2
• Towards superfluidity of dipolar excitons in a TMDC double layer
• Control of excitons in multi-layer van der Waals heterostructures
• Superfluidity of Dipolar Excitons in a Black Phosphorene Double Layer
• g-Factors and diamagnetic coefficients of electrons, holes and excitons in InAs/InP quantum dots
• Dipolar and magnetic properties of strongly absorbing hybrid interlayer excitons in pristine bilayer MoS${}_2$
• Valley Zeeman effect and Landau levels in Two-Dimensional Transition Metal Dichalcogenides
• Spatial extent of the excited exciton states in WS${}_2$ monolayers from diamagnetic shifts
• Dependence of the hBN Layer Thickness on the Band Structure and Exciton Properties of Encapsulated WSe2 Monolayers
• Excitons, trions, and biexcitons in transition metal dichalcogenides: magnetic field dependence
• Transistor concepts based on lateral heterostructures of metallic and semiconducting phases of MoS${}_2$
• Ground and Excited Exciton Polarons in Monolayer MoSe2
• Experimental verification of the very strong coupling regime in a GaAs quantum well microcavity
• Atomically inspired $k\cdot p$ approach and valley Zeeman effect in transition metal dichalcogenide monolayers
• Localized interlayer complexes in heterobilayer transition metal dichalcogenides
• On the Optical Properties of Excitons in Buckled 2D Materials in an External Electric Field
• Zeeman spectroscopy of excitons and hybridization of electronic states in few-layer WSe${}_2$, MoSe${}_2$ and MoTe${}_2$
• Few-body systems in condensed matter physics
• Strong Valley Zeeman Effect of Dark Excitons in Monolayer Transition Metal Dichalcogenides in a Tilted Magnetic Field
• Tuning the exciton g-factor in single InAs/InP quantum dots
• Effects of parallel electric and magnetic fields on Rydberg excitons in buckled two-dimensional materials
• Three-dimensional electron-hole superfluidity in a superlattice close to room temperature
• Electron-hole superfluidity controlled by a periodic potential

Cited by in corpus (5)

• Excitons in Atomically Thin TMD in Electric and Magnetic Fields
• Thermal effect on magnetoexciton energy spectra in monolayer transition metal dichalcogenides
• Magnetoexcitons in phosphorene monolayers, bilayers, and van der Waals heterostructures
• Canalized hyperbolic magnetoexciton polaritons enabled by the Shubnikov-de Haas effect in van der Waals semiconductors
• Electric field tunable magnetoexcitons in Xenes-hBN-TMDC, Xenes-hBN-BP, and Xenes-hBN-TMTC heterostructures