Nonlocal electrodynamics of two-dimensional anisotropic magneto-plasmons
arXiv:2505.08398 · doi:10.1515/nanoph-2025-0233
Abstract
We present a hydrodynamic model, grounded in Madelung's formalism, to describe collective electronic motion in anisotropic materials. This model incorporates nonlocal contributions from the Thomas-Fermi quantum pressure and quantum effects arising from the Bohm potential. We derive analytical expressions for the magnetoplasmon dispersion and nonlocal optical conductivity. To demonstrate the applicability of the model, we examine electrons in the conduction band of monolayer phosphorene, an exemplary anisotropic two-dimensional electron gas. The dispersion of plasmons derived from our hydrodynamic approach is closely aligned with that predicted by ab~initio calculations. Then, we use our model to analyze few-layer black phosphorus, whose measured infrared optical response is hyperbolic. Our results reveal that the incorporation of nonlocal and quantum effects in the optical conductivity prevents black phosphorus from supporting hyperbolic surface plasmon polaritons. We further demonstrate that the predicted wavefront generated by an electric dipole exhibits a significant difference between the local and nonlocal descriptions for the optical conductivity. This study underscores the necessity of moving beyond local approximations when investigating anisotropic systems capable of hosting strongly confined plasmon-polaritons.
References in corpus (35)
- Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
- Phosphorene: A New 2D Material with High Carrier Mobility
- Optimized norm-conserving Vanderbilt pseudopotentials
- Tunable Band Gap and Anisotropic Optical Response in Few-layer Black Phosphorus
- The PseudoDojo: Training and grading a 85 element optimized norm-conserving pseudopotential table
- Strain-induced gap modification in black phosphorus
- Yambo: an \textit{ab initio} tool for excited state calculations
- Hyperbolic phonon-polaritons in boron nitride for near-field optical imaging
- Many-body perturbation theory calculations using the yambo code
- Tuning quantum non-local effects in graphene plasmonics
- Density functional perturbation theory for gated two-dimensional heterostructures: Theoretical developments and application to flexural phonons in graphene
- Tunable light-matter interaction and the role of hyperbolicity in graphene-hBN system
- An Introduction to Graphene Plasmonics
- Second and Third Harmonic Generation in Metal-Based Nanostructures
- Black Phosphorus Plasmonics: Anisotropic Elliptical Propagation and Nonlocality-Induced Canalization
- Hyperbolic metamaterials: nonlocal response regularizes broadband super-singularity
- Numerical solution of nonlocal hydrodynamic Drude model for arbitrary shaped nano-plasmonic structures using Nédélec finite elements
- Current-dependent exchange-correlation potential for non-local absorption in quantum hydrodynamic theory
- Probing Nonlocal Effects in Metals with Graphene Plasmons
- Extremely confined gap plasmon modes: when nonlocality matters
- Tunable intraband optical conductivity and polarization-dependent epsilon-near-zero behavior in black phosphorus
- A hybridizable discontinuous Galerkin method for solving nonlocal optical response models
- A hydrodynamic model approach to the formation of plasmonic wakes in graphene
- Improvements in the and Bethe-Salpeter-equation calculations on phosphorene
- Plasmonic modes in nanowire dimers: A study based on the hydrodynamic Drude model including nonlocal and nonlinear effects
- Quantization of graphene plasmons
- Free electron nonlinearities in heavily doped semiconductors plasmonics
- Terahertz Laser Combs in Graphene Field-Effect Transistors
- Theroy of anisotropic plasmons
- Parallel FDTD modelling of nonlocality in plasmonics
- Anisotropic Second Harmonic Generation From Monocrystalline Gold Flakes
- Unveiling the Mechanism of Phonon-Polariton Damping in α-MoO_3
- Application of Madelung Hydrodynamics to Plasmonics and Nonlinear Optics in Two-Dimensional Materials
- Controlling electric and magnetic Purcell effects in phosphorene via strain engineering
- Quantum-hydrodynamic modal perspective on plasmonic gap structures