One-dimensionality signature in optical conductivity of heavy-fermion CeIrB
arXiv:2302.02958 · doi:10.1103/PhysRevB.107.205116
Abstract
In low dimensions, the combined effects of interactions and quantum fluctuations can lead to dramatically new physics distinct from that existing in higher dimensions. Here, we investigate the electronic and optical properties of CeIrB, a quasi-one-dimensional (1D) Kondo lattice system, using calculations. The Ce atoms in the hexagonal crystal structure form 1D chains along the -axis, with extremely short Ce-Ce distances. The quasi-1D nature of the crystal structure is well reflected in its electronic structure. Extremely flat bands emerge within the -plane of the Brillouin zone, yielding sharp optical transitions in the corresponding optical conductivity. Our calculations indicate that these prominent peaks in the optical conductivity provide a clear signature of quasi-1D heavy fermion systems.
8 pages, 8 figures
References in corpus (12)
- Electrodynamics of Correlated Electron Materials
- Quantum Monte Carlo Impurity Solver for Cluster DMFT and Electronic Structure Calculations in Adjustable Base
- Imaging spinon density modulations in a 2D quantum spin liquid
- Emulating heavy fermions in twisted trilayer graphene
- Superconductivity in an extreme strange metal
- Chiral Kondo Lattice in Doped MoTe/WSe Bilayers
- Gate-tunable heavy fermion quantum criticality in a moiré Kondo lattice
- Optical conductivity in cluster dynamical mean field theory: formalism and application to high temperature superconductors
- Zero-Temperature Magnetic Transition in an Easy-Axis Kondo Lattice Model
- Orbital selective coupling in CeRhB: co-existence of high Curie and high Kondo temperature
- Easy-plane magnetocrystalline anisotropy in the multi-step metamagnet CeIr3Si2
- Investigation of metamagnetism and crystal-field splitting in pseudo-hexagonal CeRhSi