Observation of domain wall resistivity in $\rm SrRuO_3$

Details Observation of domain wall resistivity in $\rm SrRuO_3$ Observation of domain wall resistivity in $\rm SrRuO_3$

1999-12-22

arxiv.org/abs/cond-mat/9912404v1

Phys. Rev. Lett. 84, 6090 (2000)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevLett.84.6090

$\rm SrRuO_3$ is an itinerant ferromagnet with $T_c \sim 150 \rm K$. When $\rm SrRuO_3$ 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 resisitivity of $\rm SrRuO_3$ and that the enhancement has different temperature dependence for currents parallel and perpendicular to the domain walls. We discuss possible interpretations of our results.

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