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Angular dependence of domain wall resistivity in SrRuO$_{\bf 3}$ films

Michael Feigenson·Lior Klein·James W. Reiner·Malcolm R. Beasley
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Abstract

${\rm SrRuO_3}$ is a 4d itinerant ferromagnet (T$_{c}$ $\sim $150 K) with stripe domain structure. Using high-quality thin films of SrRuO$_{3}$ we study the resistivity induced by its very narrow ($\sim 3$ nm) Bloch domain walls, $ρ_{DW}$ (DWR), at temperatures between 2 K and T$_{c}$ as a function of the angle, $θ$, between the electric current and the ferromagnetic domains walls. We find that $ρ_{DW}(T,θ)=\sin^2θρ_{DW}(T,90)+B(θ)ρ_{DW}(T,0)$ which provides the first experimental indication that the angular dependence of spin accumulation contribution to DWR is $\sin^2θ$. We expect magnetic multilayers to exhibit a similar behavior.

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Michael Feigenson, Lior Klein, James W. Reiner, Malcolm R. Beasley. 2003-01-22. Angular dependence of domain wall resistivity in SrRuO$_{\bf 3}$ films. https://doi.org/10.1103/physrevb.67.134436

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