Scaling of the anomalous Hall effect in SrRuO$_{3}$

Details Scaling of the anomalous Hall effect in SrRuO$_{3}$ Scaling of the anomalous Hall effect in SrRuO$_{3}$

2011-11-29

arxiv.org/abs/1111.6734v1

PRB, vol. 84 (2011) 174439

Physics

Condensed Matter

Strongly Correlated Electrons

arXiv admin note: substantial text overlap with arXiv:1105.3059

Scientific paper

10.1103/PhysRevB.84.174439

We measure the anomalous Hall effect (AHE) resistivity $\rho_{xy}$ in thin films of the itinerant ferromagnet SrRuO$_{3}$. At low temperatures, the AHE coefficient $R_{s}$ varies with $\rho_{xx}^2$, and at higher temperatures, $R_{s}$ reaches a peak and then changes sign just below $T_{c}$. We find that for all films studied $R_{s}$ scales with resistivity in the entire ferromagnetic phase. We attribute the observed behavior to the contribution of the extrinsic side jumps mechanism and the intrinsic Karplus-Luttinger (Berry phase) mechanism including the effect of finite scattering rates.

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