Low temperature behavior of the heavy fermion Ce3 Co4 Sn13

A. D. Christianson, J. S. Gardner, H. J. Kang, J. H. Chung, S. Bobev, J. L. Sarrao, J. M. Lawrence

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21 Citations (Scopus)

Abstract

The compound Ce3 Co4 Sn13 is an extremely heavy cubic heavy fermion system with a low temperature electronic specific heat of order ∼ 4 J / mol K2. If the compound is nonmagnetic, it would be one of the heaviest nonmagnetic Ce-based heavy fermions reported to date and therefore would be expected to lie extremely close to a quantum critical point. However, a broad peak of unknown origin is observed at 0.8 K in the specific heat and magnetic susceptibility, suggesting the possibility of antiferromagnetic order. We present neutron diffraction data from polycrystalline samples which do not show any sign of magnetic scattering below 0.8 K. In addition, we present inelastic neutron scattering data from a single crystal sample which is consistent with the 1.2 K energy scale for Kondo spin fluctuations determined from specific heat measurements.

Original languageEnglish
Pages (from-to)266-267
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - 2007 Mar
Externally publishedYes

Keywords

  • Heavy fermion
  • Inelastic neutron scattering
  • Neutron diffraction
  • Quantum critical point

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Christianson, A. D., Gardner, J. S., Kang, H. J., Chung, J. H., Bobev, S., Sarrao, J. L., & Lawrence, J. M. (2007). Low temperature behavior of the heavy fermion Ce3 Co4 Sn13. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 1), 266-267. https://doi.org/10.1016/j.jmmm.2006.10.040