Rama-Eiroa, R. and Roy, P. E. and Gonzalez, J. M. and Guslienko, K. Y. and Wunderlich, J. and Otxoa, R. M. (2022) Inertial domain wall characterization in layered multisublattice antiferromagnets. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 560: 169566. ISSN 0304-8853, 1873-4766
Full text not available from this repository. (Request a copy)Abstract
The motion of a Neel-like 180 degrees domain wall induced by a time-dependent staggered spin-orbit field in the layered collinear antiferromagnet Mn2Au is explored. Through an effective version of the two sublattice nonlinear a-model which does not take into account the antiferromagnetic exchange interaction directed along the tetragonal c-axis, it is possible to replicate accurately the relativistic and inertial traces intrinsic to the magnetic texture dynamics obtained through atomistic spin dynamics simulations for quasistatic processes. In the case in which the steady-state magnetic soliton motion is extinguished due to the abrupt shutdown of the external stimulus, its stored relativistic exchange energy is transformed into a complex translational mobility, being the rigid domain wall profile approximation no longer suitable. Although it is not feasible to carry out a detailed follow-up of its temporal evolution in this case, it is possible to predict the inertial-based distance travelled by the domain wall in relation to its steady-state relativistic mass. This exhaustive dynamical characterization for different time-dependent regimes of the driving force is of potential interest in antiferromagnetic domain wall-based device applications.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DYNAMICS; DRIVEN; MN2AU; MOTION; Domain wall; Antiferromagnets; Spin-orbit coupling; Special relativity; Magnetization dynamics |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Prof. Jörg Wunderlich |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jan 2024 11:57 |
| Last Modified: | 26 Jan 2024 11:57 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58302 |
Actions (login required)
 |
View Item |
