Weak itinerant ferromagnetism in YCo9Si4

H. Michor; M. El-Hagary; S. Oezcan; A. Horyn; E. Bauer; M. Reissner; G. Hilscher; S. Khmelevskyi; P. Mohn; P. Rogl

doi:10.1016/j.physb.2005.01.331

Weak itinerant ferromagnetism in YCo9Si4

Strongly Correlated Electrons 2018-05-04 v1

Authors: H. Michor , M. El-Hagary , S. Oezcan , A. Horyn , E. Bauer , M. Reissner , G. Hilscher , S. Khmelevskyi , P. Mohn , P. Rogl

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Abstract

Weak itinerant ferromagnetism in YCo9Si4 below about 25 K is studied by means of magnetisation, specific heat, and resistivity measurements. Single crystal X-ray Rietveld refinements at room temperature reveal a fully ordered distribution of Y, Co and Si atoms within the tetragonal space group I4/mcm isostructural with LaCo9Si4. The latter exhibits itinerant electron metamagnetism with an induced moment of about 1 mu_B/f.u. above 6 T, whereas YCo9Si4 exhibits a spontaneous magnetisation M0~12 Am^2/kg at 2 K which corresponds to an ordered moment of about 1.6 mu_B/f.u. indicating weak itinerant ferromagnetism.

Keywords

magnetic structure magnetoresistance phase transitions

Cite

@article{arxiv.cond-mat/0406548,
  title  = {Weak itinerant ferromagnetism in YCo9Si4},
  author = {H. Michor and M. El-Hagary and S. Oezcan and A. Horyn and E. Bauer and M. Reissner and G. Hilscher and S. Khmelevskyi and P. Mohn and P. Rogl},
  journal= {arXiv preprint arXiv:cond-mat/0406548},
  year   = {2018}
}

Comments

2 pages, 3 figures, submitted to SCES 04

Weak itinerant ferromagnetism in YCo9Si4

Abstract

Keywords

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