On-line SPICE-SPIN+X Seminars

On-line Seminar: 17.02.2021 - 15:00 German Time

Seeing or listening: magnetoelastic effects in antiferromagnetic textures

Olena Gomonay, JGU Mainz

Antiferromagnets are considered as prospective materials for spintronic applications as they could be effectively manipulated with the electrical and optical pulses, and also show magnetic dynamics and low susceptibility to the external magnetic field. The mechanisms involved into control and manipulation of antiferromagnetic states were usually related with the current- or laser-induced spin-torques. However, recent experiments demonstrated that heating and heat-induced strains that follow current and laser pulses can produce similar or even stronger effects on the magnetic dynamics. In this presentation we consider behaviour of antiferromagnetic textures in presence of inhomogeneous strain fields of different origin. In particular, we discuss the magnetoelastic mechanism that is responsible for formation of the domain structure, magnetoelastic pinning of the domain walls, and thermo-magnetoelastic mechanism of current-induced switching.

PDF file of the talk available here