Domain-wall Magnetic-texture dependent Creep Motion driven by Spin-transfer Torques
Abstract
We explore the contributions of adiabatic and non-adiabatic spin-transfer torques (STT) of a spin-polarized current to the thermally activated creep motion of domain-walls in a thin (Ga,Mn)(As,P) film with perpendicular anisotropy. For a domain-wall transverse to current, the non-adiabatic STT is found to act as an external magnetic field. Close to the compensation between these two terms, the adiabatic contribution is strongly enhanced. The domain-wall velocity may be both increased or reduced by the adiabatic STT, which we associate to variations of creep pinning energy barrier with domain-wall magnetic texture. Far from compensation, the contribution of adiabatic STT is negligible. Field and current driven domain-wall motion present common universal behaviors described by the quenched Edwards Wilkinson universality class.
Keywords
Cite
@article{arxiv.2312.15512,
title = {Domain-wall Magnetic-texture dependent Creep Motion driven by Spin-transfer Torques},
author = {Lucas Javier Albornoz and Rebeca Díaz Pardo and Aristide Lemaître and Sebastian Bustingorry and Javier Curiale and Vincent Jeudy},
journal= {arXiv preprint arXiv:2312.15512},
year = {2023}
}
Comments
9 pages, 3 figures