Nonlocal optical conductivity of Fermi surface nesting materials
arXiv:2211.00244 · doi:10.1007/s11433-022-2035-7
Abstract
We investigate the nonlocal optical conductivity of Fermi surface nesting materials which support charge density waves or spin density waves. The nonlocal optical conductivity contains information of correlations in electron fluids which could not be accessed by standard optical probes. Half metal emerges from doping a charge density wave and similarly spin-valley half metal emerges from doping a spin density wave. Based on the parabolic band approximation, we find the Drude peak is shifted to higher frequency and splits into two peaks in the nonlocal optical conductivity. We attribute this to the two Fermi velocities in the half-metal or spin-valley half metal states.
arXiv comment16 pages, 12 figures, to appear on Science China Physics, Mechanics & Astronomy
References in corpus (27)
- Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
- Maximally localized Wannier functions: Theory and applications
- Valley contrasting physics in graphene: magnetic moment and topological transport
- Gate-tuning of graphene plasmons revealed by infrared nano-imaging
- Semiconductor Spintronics
- Infrared nanoscopy of Dirac plasmons at the graphene-SiO2 interface
- Electronic crystals: an experimental overview
- Classification of Charge Density Waves Based on Their Nature
- Tuning quantum non-local effects in graphene plasmonics
- Three-dimensional quantum Hall effect and metal-insulator transition in ZrTe5
- Unique gap structure and symmetry of the charge density wave in single-layer VSe
- Longitudinal and spin/valley Hall optical conductivity in single layer
- Optical Conductivity of Twisted Bilayer Graphene
- Phonon collapse and van der Waals melting of the 3D charge density wave of VSe
- Externally controlled band gap in twisted bilayer graphene
- Spin-valley half-metal as a prospective material for spin-valley-tronics
- Charge density waves in electron-doped molybdenum disulfide
- Nonlocal Optical Response in Topological Phase Transitions in the Graphene Family
- Density-independent plasmons for terahertz-stable topological metamaterials
- Perturbation theory of the mass enhancement for a polaron coupled to acoustic phonons
- Theory for magnetic-field-driven 3D metal-insulator transitions in the quantum limit
- Light-tunable charge density wave orders in MoTe2 and WTe2 single layers
- Enhanced superconductivity in bilayer PtTe by alkali-metal intercalations
- Spin-valley half-metal in systems with Fermi surface nesting
- Impact of spin-orbit coupling on the Holstein polaron
- The polaron-like nature of an electron coupled to phonons
- Dynamical spin susceptibility of spin-valley half-metal