Search results for "Anisotropic magnetoresistance"

showing 1 items of 1 documents

Broadband Terahertz Probes of Anisotropic Magnetoresistance Disentangle Extrinsic and Intrinsic Contributions

2021

Anisotropic magnetoresistance (AMR) is a ubiquitous and versatile probe of magnetic order in contemporary spintronics research. Its origins are usually ascribed to extrinsic effects (i.e. spin-dependent electron scattering), whereas intrinsic (i.e. scattering-independent) contributions are neglected. Here, we measure AMR of polycrystalline thin films of the standard ferromagnets Co, Ni, Ni81Fe19 and Ni50Fe50 over the frequency range from DC to 28 THz. The large bandwidth covers the regimes of both diffusive and ballistic intraband electron transport and, thus, allows us to separate extrinsic and intrinsic AMR components. Analysis of the THz response based on Boltzmann transport theory revea…

Materials scienceMagnetoresistanceTerahertz radiation530 PhysicsQC1-999General Physics and AstronomyFOS: Physical sciences01 natural sciences530010305 fluids & plasmasTerahertz time-domain spectroscopy0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)ddc:530Thin film010306 general physicsTerahertz time-domain spectroscopySpintronicsCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale Physicsbusiness.industryPhysics500 Naturwissenschaften und Mathematik::530 Physik::530 PhysikAnisotropic magnetoresistanceSpintronics530 PhysikFerromagnetismPhotonicsbusinessElectron scattering
researchProduct