High-field transport properties of itinerant electron metamagnetic Co(S1-xSex)2

Hirofumi Wada, Yoshiro Maekawa, Daichi Kawasaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Co(S1-xSex)2 compounds are known to exhibit itinerant electron metamagnetism (IEM). We present field dependence of electrical resistivity and Hall effect of the compounds with 0 ≤ x < 0.15. It was found that the magnetoresistance shows a positive jump associated with the IEM. This jump is nearly independent of temperature. We also observed a jump in the field dependence of Hall resistivity, which is attributable to the anomalous Hall effect due to the onset of ferromagnetism. Our analyses revealed that the ordinary Hall coefficient decreases considerably by the IEM. These results are discussed in terms of the proposed electronic structure of CoS2, in which a highly spin polarized state is achieved.

Original languageEnglish
Pages (from-to)179-184
Number of pages6
JournalJournal of Science: Advanced Materials and Devices
Volume1
Issue number2
DOIs
Publication statusPublished - Jun 1 2016

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Materials Science (miscellaneous)

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