Phononic dynamical axion in magnetic Dirac insulators
arXiv:2311.10674 · doi:10.1103/PhysRevB.109.144304
Abstract
In cosmology, the axion is a hypothetical particle that is currently considered as candidate for dark matter. In condensed matter, a counterpart of the axion (the "axion quasiparticle") has been predicted to emerge in magnetoelectric insulators with fluctuating magnetic order and in charge-ordered Weyl semimetals. To date, both the cosmological and condensed-matter axions remain experimentally elusive or unconfirmed. Here, we show theoretically that ordinary lattice vibrations can form an axion quasiparticle in Dirac insulators with broken time- and space-inversion symmetries, even in the absence of magnetic fluctuations. The physical manifestation of the phononic axion is a magnetic-field-induced phonon effective charge, which can be probed in optical spectroscopy. By replacing magnetic fluctuations with lattice vibrations, our theory widens the scope for the observability of the axion quasiparticle in condensed matter.
arXiv comment12 pages, 4 figures, Published version
References in corpus (34)
- Topological Field Theory of Time-Reversal Invariant Insulators
- Dynamical Axion Field in Topological Magnetic Insulators
- Chiral anomaly, Charge Density Waves, and Axion Strings from Weyl Semimetals
- Evidence for an axionic charge density wave in the Weyl semimetal (TaSe4)2I
- Axion Electrodynamics in Topological Materials
- A Proposal to Detect Dark Matter Using Axionic Topological Antiferromagnets
- Witten effect in a crystalline topological insulator
- First-principles approach to lattice-mediated magnetoelectric effects
- Predominance of non-adiabatic effects in zero-point renormalization of the electronic band gap
- Axion topological field theory of topological superconductors
- Phonon-induced topological transitions and crossovers in Dirac materials
- Full magnetoelectric response of Cr2O3 from first principles
- Axion Quasiparticles for Axion Dark Matter Detection
- Temperature effects in the band structure of topological insulators
- Intrinsic magnetic topological insulators
- Detectability of Axion Dark Matter with Phonon Polaritons and Magnons
- Large dynamical axion field in topological antiferromagnetic insulator MnBiTe
- Signatures of the chiral anomaly in phonon dynamics
- On the matter of topological insulators as magnetoelectrics
- Instability in magnetic materials with dynamical axion field
- Phonon-induced topological insulation
- Temperature-induced topological phase transitions: promoted vs. suppressed non-trivial topology
- Interlayer magnetophononic coupling in MnBi2Te4
- Chiral Magnetic Effect and Anomalous Hall Effect in Antiferromagnetic Insulators with Spin-Orbit Coupling
- Evidence for a magnetic-field induced ideal type-II Weyl state in antiferromagnetic topological insulator Mn(Bi1-xSbx)2Te4
- Intrinsic topological phases in MnBiTe tuned by the layer magnetization
- Tunable dynamical magnetoelectric effect in antiferromagnetic topological insulator MnBiTe films
- Piezoelectricity and Topological Quantum Phase Transitions in Two-Dimensional Spin-Orbit Coupled Crystals with Time-Reversal Symmetry
- Does (TaSe4)2I really harbor an axionic charge density wave?
- Phonon-induced topological insulating phases in group IV-VI semiconductors
- Influence of Landau levels in the phonon dispersion of Weyl semimetals
- Intrinsic and tunable quantum anomalous Hall effect and magnetic topological phases in XYBi2Te5
- Magnetoresistance in quasi-one dimensional Weyl semimetal (TaSe)I
- Axion instability and non-linear electromagnetic effect