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arXiv · 1611.08701

Universal Depinning Transition of Domain Walls in Ultrathin Ferromagnets

Rebeca Diaz Pardo·Williams Savero Torres·Alejandro Kolton·Sebastian Bustingorry·Vincent Jeudy
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Abstract

We present a quantitative and comparative study of magnetic field driven domain wall depinning transition in different ferromagnetic ultrathin films over a wide range of temperature. We reveal a universal scaling function accounting for both drive and thermal effects on the depinning transition, including critical exponents. The consistent description we obtain for both the depinning and subthreshold thermally activated creep motion should shed light on the universal glassy dynamics of thermally fluctuating elastic objects pinned by disordered energy landscapes.

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Rebeca Diaz Pardo, Williams Savero Torres, Alejandro Kolton, Sebastian Bustingorry, Vincent Jeudy. 2016-11-26. Universal Depinning Transition of Domain Walls in Ultrathin Ferromagnets. https://doi.org/10.1103/physrevb.95.184434

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