Role of orbital hybridization in anisotropic magnetoresistance
Hye-Won Ko, Hyeon-Jong Park, Gyungchoon Go, Jung Hyun Oh, Kyoung‐Whan Kim, Kyung‐Jin Lee
Abstract
We theoretically and numerically show that longitudinal orbital currents in ferromagnets depend on the magnetization direction, which contribute to the anisotropic magnetoresistance (AMR). This orbital contribution to AMR arises from the momentum-dependent orbital splitting, which is generally present in multiorbital systems through the orbital anisotropy and the orbital hybridization. We highlight the latter orbital hybridization as an unrecognized origin of AMR and also as a common origin of AMR and orbital Hall effect.
Topics & Concepts
Condensed matter physicsOrbital magnetizationOrbital hybridisationAnisotropyMagnetoresistancePhysicsNon-bonding orbitalFerromagnetismMagnetizationAtomic orbitalMagnetic anisotropyMolecular orbital theoryQuantum mechanicsMagnetic fieldElectronMagnetic properties of thin filmsMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics