Nonreciprocal Transport in Noncoplanar Magnetic Systems without Spin–Orbit Coupling, Net Scalar Chirality, or Magnetization
Satoru Hayami, Megumi Yatsushiro
Abstract
We propose a new mechanism of nonlinear nonreciprocal transport in magnetic systems. By considering a noncoplanar magnetic ordering on a bilayer triangular lattice, we clarify that a local scalar chirality degree of freedom is a source of nonreciprocal transport, which does not require any relativistic spin-orbit coupling, net scalar chirality, and net magnetization. We show a close relationship between the asymmetric band modulation and the nonreciprocal transport under the noncoplanar magnetic ordering based on the model-parameter dependences in the real-space picture.
Topics & Concepts
MagnetizationCondensed matter physicsScalar (mathematics)Spin–orbit interactionPhysicsCoupling (piping)Chirality (physics)Spin (aerodynamics)Orbit (dynamics)Magnetic fieldQuantum mechanicsMaterials scienceSymmetry breakingMetallurgyMathematicsEngineeringAerospace engineeringChiral symmetry breakingGeometryThermodynamicsNambu–Jona-Lasinio modelMagnetic properties of thin filmsAdvanced Condensed Matter PhysicsPhysics of Superconductivity and Magnetism