Determination of the resistivity anisotropy of SrRuO$_{3}$ by measuring the planar Hall effect

Details Determination of the resistivity anisotropy of SrRuO$_{3}$ by measuring the planar Hall effect Determination of the resistivity anisotropy of SrRuO$_{3}$ by measuring the planar Hall effect

2006-09-13

arxiv.org/abs/cond-mat/0609321v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

We have measured the planar Hall effect in epitaxial thin films of the itinerant ferromagnet SrRuO3 patterned with their current paths at different angles relative to the crystallographic axes. Based on the results, we have determined that SrRuO3 exhibits small resistivity anisotropy in the entire temperature range of our measurements (between 2 to 300 K); namely, both above and below its Curie temperature (~150 K). It means that in addition to anisotropy related to magnetism, the resistivity anisotropy of SrRuO3 has an intrinsic, nonmagnetic source. We have found that the two sources of anisotropy have competing effects.

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