Electromagnetic response in spiral magnets and emergent inductance
arXiv:2103.11317 · doi:10.1038/s42005-021-00765-3
Abstract
Emergent electromagnetism in magnets originates from the strong coupling between conduction electron spins and those of noncollinear ordered moments and the consequent Berry phase. This offers possibilities to develop new functions of quantum transport and optical responses. The emergent inductance in spiral magnets is an example recently proposed and experimentally demonstrated, used the emergent electric field induced by alternating currents. However, the microscopic theory of this phenomenon is missing, which should reveal the factors to determine the magnitude, sign, frequency dependence, and nonlinearity of the inductance L. Here we theoretically study electromagnetic responses of spiral magnets taking into account their collective modes. In sharp contrast to the collinear spin-density wave, the system remains metallic even in one-dimension, and the canonical conjugate relation of uniform magnetization and phason coordinate plays an essential role, determining the properties of L. This result opens a way to design the emergent inductance of desired properties.
arXiv comment18 pages, 5 figures
References in corpus (22)
- Berry Phase Effects on Electronic Properties
- Anomalous Hall effect
- Spin Hall effect
- Universal Intrinsic Spin-Hall Effect
- Dissipationless Quantum Spin Current at Room Temperature
- Topological Hall effect in the A-phase of MnSi
- Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
- Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
- Wave-packet dynamics in slowly perturbed crystals: Gradient corrections and Berry-phase effects
- Berry phase, hyperorbits, and the Hofstadter spectrum: semiclassical dynamics in magnetic Bloch bands
- Topological Superconductivity and Majorana Fermions in RKKY Systems
- Microscopic approach to current-driven domain wall dynamics
- Effective bilinear-biquadratic model for noncoplanar ordering in itinerant magnets
- Emergent electromagnetism in solids
- Helical order in one-dimensional magnetic atom chains and possible emergence of Majorana bound states
- Vortex Crystals with Chiral Stripes in Itinerant Magnets
- Emergent electromagnetic induction beyond room temperature
- Spin-Motive Forces and Current-Induced Torques in Ferromagnets
- Skyrmions and multi-sublattice helical states in a frustrated chiral magnet
- Intrinsic and extrinsic tunability of Rashba spin-orbit coupled emergent inductors
- Stabilization of magnetic skyrmions by RKKY interactions
- Coupling of skyrmions mediated by RKKY interaction
Cited by in corpus (16)
- Emergent electromagnetic induction beyond room temperature
- Spin and spin current -- From fundamentals to recent progress
- Quantum Interactions in Topological R166 Kagome Magnet
- Doping control of magnetism and emergent electromagnetic induction in high-temperature helimagnets
- Square skyrmion crystal in centrosymmetric systems with locally inversion-asymmetric layers
- Phase degree of freedom and topology in multiple- spin textures
- Emergence of inductance and capacitance from topological electromagnetism
- Emergent inductance from spin fluctuations in strongly correlated magnets
- Energetic perspective on emergent inductance exhibited by magnetic textures in the pinned regime
- Bulk photovoltaic effect in antiferromagnet: Role of collective spin dynamics
- Thermoelectric effect of skyrmion crystal confined in a magnetic disk
- Emergent inductors in non-helical magnets
- Emergent electric field induced by dissipative sliding dynamics of domain walls in a Weyl magnet
- Emergent impedance due to antiferromagnetic domain wall dynamics
- Inductance Meets Memory in the Quantum Magnet Mn3Si2Te6
- Emergent Inductance from Chiral Orbital Currents in a Bulk Ferrimagnet