6533b832fe1ef96bd129a39c

RESEARCH PRODUCT

Dynamics of noncollinear antiferromagnetic textures driven by spin current injection

Olena GomonayJairo SinovaJairo SinovaYuta Yamane

subject

PhysicsCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsFOS: Physical sciences02 engineering and technologySpin current021001 nanoscience & nanotechnology01 natural sciencesFormalism (philosophy of mathematics)Mesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesSpin Hall effectAntiferromagnetismCondensed Matter::Strongly Correlated ElectronsDomain wall dynamics010306 general physics0210 nano-technology

description

We present a theoretical formalism to address the dynamics of textured, noncolliear antiferromagnets subject to spin current injection. We derive sine-Gordon type equations of motion for the antiferromagnets, which are applicable to technologically important antiferromagnets such as Mn3Ir and Mn3Sn, and enables an analytical approach to domain wall dynamics in those materials. We obtain the expression for domain wall velocity, which is estimated to reach around 1 km/s in Mn3Ir by exploiting spin Hall effect with electric current density around 10^11A/m^2.

yearjournalcountryeditionlanguage
2019-01-17
10.1103/physrevb.100.054415http://arxiv.org/abs/1901.05684