Domain Wall Resistivity in ${\mathrm{SrRuO}}_3$

${\mathrm{SrRuO}}_3$ is an itinerant ferromagnet with $T_c\sim 150\mathrm{K}$. When ${\mathrm{SrRuO}}_3$ is cooled through $T_c$ in zero applied magnetic field, a stripe domain structure appears whose orientation is uniquely determined by the large uniaxial magnetocrystalline anisotropy. We find that the ferromagnetic domain walls clearly enhance the resistivity of ${\mathrm{SrRuO}}_3$ and that the enhancement has different temperature dependence for currents parallel and perpendicular to the domain walls. We discuss possible interpretations of our results.