Non-Fermi-liquid behaviour of U3-xNi3Sn4-y single crystals

L. Shlyk, J. C. Waerenborgh, P. Estrela, L. E. De Long, A. De Visser, M. Almeida

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


U3Ni3Sn4 and U2.9Ni3.0Sn3.9 single crystals exhibit a non-Fermi-liquid susceptibility χ ∝ T-0.3 between 1.7 and 10 K. The electronic heat capacity coefficient γ(T) of U2.9Ni3.0Sn3.9 varies as the square root of temperature between 0.3 and 5 K. Although most available non-Fermi-liquid models are in disagreement with these results, the heat capacity data are consistent with a renormalization group calculation for magnetic fluctuations near an antiferromagnetic quantum critical point (QCP). Alternatively, both the magnetic and heat capacity data can be fitted to a Griffiths-phase model for magnetic clusters near a QCP, using a single characteristic exponent λ = 0.7.

Original languageEnglish
Pages (from-to)3525-3534
Number of pages10
JournalJournal of Physics Condensed Matter
Issue number17
StatePublished - May 3 1999

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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