Collective Excitations in 2D Materials

Abstract

Research on 2D materials has been one of the fastest-growing fields in condensed matter physics and materials science in the past 10 years. The low dimensionality and strong correlations of 2D systems give rise to electronic and structural properties, in the form of collective excitations, that do not have counterparts in ordinary 3D materials used in modern technology. These 2D materials present extraordinary opportunities for new technologies, such as in flexible electronics. In this Review, we focus on plasmons, excitons, phonons and magnons in 2D materials. We discuss the theoretical formalism of these collective excitations and elucidate how they differ from their 3D counterparts.

References in corpus (94)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• Control of valley polarization in monolayer MoS2 by optical helicity
• Valley polarization in MoS2 monolayers by optical pumping
• Impermeable Atomic Membranes from Graphene Sheets
• MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
• Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS2
• Gate-tuning of graphene plasmons revealed by infrared nano-imaging
• Excitons in atomically thin transition metal dichalcogenides
• Optical nano-imaging of gate-tuneable graphene plasmons
• Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene
• Observation of Long-Lived Interlayer Excitons in Monolayer MoSe2-WSe2 Heterostructures
• Optical Spectrum of MoS${}_2$: Many-body Effects and Diversity of Exciton States
• Moiré Excitons in Van der Waals Heterostructures
• First-principles study of the phonon-limited mobility in n-type single-layer MoS2
• Phonon and Raman scattering of two-dimensional transition metal dichalcogenides from monolayer, multilayer to bulk material
• Tightly bound excitons in monolayer WSe2
• Signatures of moiré-trapped valley excitons in MoSe${}_2$/WSe${}_2$ heterobilayers
• Strong light-matter coupling in two-dimensional atomic crystals
• Electron-Electron Interactions in Graphene: Current Status and Perspectives
• Observation of Moiré Excitons in WSe2/WS2 Heterostructure Superlattices
• Dynamical polarization of graphene at finite doping
• Ising-Type Magnetic Ordering in Atomically Thin FePS3
• Theory of Neutral and Charged Excitons in Monolayer Transition Metal Dichalcogenides
• Quasiparticle band structures and optical properties of strained monolayer MoS2 and WS2
• Resonantly hybridised excitons in moiré superlattices in van der Waals heterostructures
• The Shear Mode of Multi-Layer Graphene
• On the origin of magnetic anisotropy in two dimensional CrI${}_3$
• Dielectric screening in two-dimensional insulators: Implications for excitonic and impurity states in graphane
• Interlayer breathing and shear modes in few-trilayer MoS2 and WSe2
• Plasmons and screening in monolayer and multilayer black phosphorus
• Fermi polaron-polaritons in charge-tunable atomically thin semiconductors
• Evidence of high-temperature exciton condensation in 2D atomic double layers
• High-temperature superfluidity with indirect excitons in van der Waals heterostructures
• Infrared nanoscopy of Dirac plasmons at the graphene-SiO2 interface
• Excitonic linewidth and coherence lifetime in monolayer transition metal dichalcogenides
• Shear and Layer Breathing Modes in Multilayer MoS2
• Robust optical emission polarization in MoS2 monolayers through selective valley excitation
• Electrical suppression of all nonradiative recombination pathways in monolayer semiconductors
• Imaging mechanical vibrations in suspended graphene sheets
• Binding energies of exciton complexes in transition metal dichalcogenides and effect of dielectric environment
• Density functional perturbation theory for gated two-dimensional heterostructures: Theoretical developments and application to flexural phonons in graphene
• Charged excitons in monolayer WSe${}_2$: experiment and theory
• Exciton fine structure and spin decoherence in monolayers of transition metal dichalcogenides
• The Role of Electron-electron Interactions in Graphene ARPES Spectra
• Excitons in van der Waals heterostructures: The important role of dielectric screening
• Flexural phonons in free-standing graphene
• Observation of tunable charged exciton polaritons in hybrid monolayer WS2 $-$ plasmonic nanoantenna system
• Imaging exciton-polariton transport in MoSe2 waveguides
• Many-Body Theory of Trion Absorption Features in Two-Dimensional Semiconductors
• Charge-tuneable biexciton complexes in monolayer WSe${}_2$
• Multiferroic Two-Dimensional Materials
• Valley-Polarized Exciton-Polaritons in a Monolayer Semiconductor
• Two dimensional magnets: Forgotten history and recent progress towards spintronic applications
• Band Structure and Optical Transitions in Atomic Layers of Hexagonal Gallium Chalcogenides
• Two-dimensional Fröhlich interaction in transition-metal dichalcogenide monolayers: Theoretical modeling and first-principles calculations
• Observation of Low-frequency Interlayer Breathing Modes in Few-layer Black Phosphorus
• Fundamental Limits of Exciton-Exciton Annihilation for Light Emission in Transition Metal Dichalcogenide Monolayers
• Interlayer hybridization and moiré superlattice minibands for electrons and excitons in heterobilayers of transition-metal dichalcogenides
• Excitons in anisotropic 2D semiconducting crystals
• Tunable phonon cavity coupling in graphene membranes
• Magnon Dirac materials
• Raman fingerprint of two terahertz spin wave branches in a two-dimensional honeycomb Ising ferromagnet
• Berry phase modification to the energy spectrum of excitons
• A Review on Flexural Mode of Graphene: Lattice Dynamics, Thermal Conduction, Thermal Expansion, Elasticity, and Nanomechanical Resonance
• Layer breathing modes in few-layer graphene
• Large Frequency Change with Thickness in Interlayer Breathing Mode - Significant Interlayer Interactions in Few Layer Black Phosphorus
• Diffusion quantum Monte Carlo study of excitonic complexes in two-dimensional transition-metal dichalcogenides
• Physical origin of Davydov splitting and resonant Raman spectroscopy of Davydov components in multilayer MoTe2
• Binding energies of trions and biexcitons in two-dimensional semiconductors from diffusion quantum Monte Carlo calculations
• Near-field spectroscopy of silicon dioxide thin films
• Three-particle Complexes in Two-Dimensional Semiconductors
• Engineering of Neutral Excitons and Exciton Complexes in Transition Metal Dichalcogenide Monolayers through External Dielectric Screening
• Graphene optomechanics realized at microwave frequencies
• On the Hohenberg-Mermin-Wagner theorem and its limitations
• 2D condensate of electrons and holes in ultrathin MoTe${}_2$ photocells
• Temperature-activated layer-breathing vibrations in few-layer graphene
• Skyrmions and antiskyrmions in quasi-two-dimensional magnets
• Towards superfluidity of dipolar excitons in a TMDC double layer
• Superfluidity of Dipolar Excitons in a Black Phosphorene Double Layer
• Trion and Biexciton in Monolayer Transition Metal Dichalcogenides
• Optical Absorption by Dirac Excitons in Single-Layer Transition-Metal Dichalcogenides
• Direct observation of giant binding energy modulation of exciton complexes in monolayer MoSe${}_2$
• Localized interlayer complexes in heterobilayer transition metal dichalcogenides
• Model Prediction of Self-Rotating Excitons in Two-Dimensional Transition-Metal Dichalcogenides
• Review of Ultrafast Spectroscopy Studies of Valley Carrier Dynamics in Two Dimensional Semiconducting Transition Metal Dichalcogenides
• Measure of Diracness in two-dimensional semiconductors
• Harnessing Exciton-Exciton Annihilation in Two-Dimensional Semiconductors
• Collective modes in anisotropic double layer systems
• Evidence of Rotational Fröhlich Coupling in Polaronic Trions
• Tightly bound excitons in two-dimensional semiconductors with a flat valence band
• Critical density of topological defects upon a continuous phase transition

Cited by in corpus (15)

• Roadmap for Photonics with 2D Materials
• Magnon straintronics in the 2D van der Waals ferromagnet CrSBr from first-principles
• Magnon-Plasmon Hybridization Mediated by Spin-Orbit Interaction in Magnetic Materials
• Comparison of Optical Response from DFT Random Phase Approximation and Low-Energy Effective Model: Strained Phosphorene
• Tunable topological magnon-polaron states and anomalous Hall phenomena in two-dimensional ferromagnetic insulators
• Tailoring spin waves in 2D transition metal phosphorus trichalcogenides via atomic-layer substitution
• Effect of photoinduced screening on the spectroscopic signature of exciton-phonon coupling
• Magnon dispersion and spin transport in CrCl${}_3$ bilayers under different strain-induced magnetic states
• Magnon Nonlinear Hall Effect in 2D Antiferromagnetic Insulators
• Probing Fermi liquid exceptional points through AC conductivity
• Acoustic plasmons and isotropic short-range interaction in two-component electron liquids
• Laser induced $\mathcal{P}\mathcal{T}$-symmetry breaking in the fluctuations of electronic fluids
• Variational and field-theoretical approach to exciton-exciton interactions and biexcitons in semiconductors
• Plasmon Engineering in Intercalated 2H-TaS${}_2$
• Excitonic optical absorption in strained monolayer CrSBr