Gauge fields and related forces in antiferromagnetic soliton physics

Article

关键词: DYNAMICS;    FERROMAGNETS;    STATE;   

DOI  :  10.1103/PhysRevB.95.220407

来源: SCIE

【 摘 要 】

We derive equations of motion for topological solitons in antiferromagnets under the combined action of perturbations such as an external magnetic field and torque-generating electrical current. Aside from conservative forces, such perturbations generate an effective magnetic field exerting a gyrotropic force on the soliton and an induced electric field if the perturbation is time-dependent. We apply the general formalism to the cases of a domain wall and of a vortex. An antiferromagnetic vortex can be effectively moved by combined applications of a magnetic field and an electric current.

【 授权许可】

Free