Magnetotransport in the low carrier density ferromagnet EuB_6

S. Suellow; I. Prasad; S. Bogdanovich; M. C. Aronson; J. L. Sarrao; Z. Fisk

doi:10.1063/1.372460

Magnetotransport in the low carrier density ferromagnet EuB_6

Strongly Correlated Electrons 2009-10-31 v1

Authors: S. Suellow , I. Prasad , S. Bogdanovich , M. C. Aronson , J. L. Sarrao , Z. Fisk

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Abstract

We present a magnetotransport study of the low--carrier density ferromagnet EuB_6. This semimetallic compound, which undergoes two ferromagnetic transitions at T_l = 15.3 K and T_c = 12.5 K, exhibits close to T_l a colossal magnetoresistivity (CMR). We quantitatively compare our data to recent theoretical work, which however fails to explain our observations. We attribute this disagreement with theory to the unique type of magnetic polaron formation in EuB_6.

Keywords

magnetotransport low carrier density ferromagnet EuB_6 colossal magnetoresistance

Cite

@article{arxiv.cond-mat/9912390,
  title  = {Magnetotransport in the low carrier density ferromagnet EuB_6},
  author = {S. Suellow and I. Prasad and S. Bogdanovich and M. C. Aronson and J. L. Sarrao and Z. Fisk},
  journal= {arXiv preprint arXiv:cond-mat/9912390},
  year   = {2009}
}

Comments

Conference contribution MMM'99, San Jose

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