Oscar Alejos

TL;DR: The methodology for adapting a standard micromagnetic code to run on graphics processing units (GPUs) and exploit the potential for parallel calculations of this platform is discussed and GPMagnet, a general purpose finite-difference GPU-based micronagnetic tool, is used as an example.

TL;DR: In this article, the effect of thermal fluctuations in domain wall motion driven by either an external field or an in-plane spin-polarized current in ferromagnetic nanowires of rectangular cross section was studied.

TL;DR: This analysis reveals the key role of thermal fluctuations on the current and field-induced domain wall depinning, and it allows for direct comparison with experiments in order to gain information on the nonadiabaticity degree of the spin torque.

TL;DR: In this article, the authors describe the domain-wall dynamics along thin ferromagnetic strips driven by short pulses of magnetic field or electrical current with sinusoidal shape, and show that the wall can be eventually expelled far away from the constriction but if the maximum displacement does not surpass a given threshold the domain wall experiences an attractive force which pushes it again toward the initial pinning site.

TL;DR: In this paper, a three-dimensional dynamic micromagnetic model including the effect of eddy currents has been developed for magnetization reversal processes in permalloy nanocubes of 40-nm side.