RT info:eu-repo/semantics/article
T1 Novel interpretation of recent experiments on the dynamics of domain walls along ferrimagnetic strips
A1 Martínez, Eduardo
A1 Raposo, Víctor
A1 Alejos, Óscar
AB Domain wall motion along ferrimagnets is evaluated using micromagneticsimulations and a collective-coordinates model, both considering two sublattices withindependent parameters. Analytical expressions are derived for strips on top ofeither a heavy metal or a substrate with negligible interfacial Dzyaloshinskii-MoriyaInteraction. The work focuses its findings in this latter case, with a field-drivendomain wall motion depicting precessional dynamics which become rigid at the angularmomentum compensation temperature, and a current-driven dynamics presentingmore complex behavior, depending on the polarization factors for each sublattice.Importantly, our analyses provide also novel interpretation of recent evidence oncurrent-driven domain wall motion, where walls move either along or against thecurrent depending on temperature. Besides, our approach is able to substantiate thelarge non-adiabatic effective parameters found for these systems.
SN 0953-8984
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/80676
UL https://uvadoc.uva.es/handle/10324/80676
LA spa
NO Eduardo Martínez et al 2020 J. Phys.: Condens. Matter 32 465803
DS UVaDOC
RD 12-ene-2026