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Observation of domain wall resistivity in $rm SrRuO_3$

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 نشر من قبل Lior Klein
 تاريخ النشر 1999
  مجال البحث فيزياء
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$rm SrRuO_3$ 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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