Heat capacity experiments, crystal structure determination and transmission electron microscopy have been carried out on U3Cu3Sn4 singlecrystals. U3Cu3Sn4 was confirmed to be a heavy-fermion antiferromagnet (TN = 13(1)K) with a low-temperature electronic heat capacity coefficient γ = 390 mJ/molUK2. Low-temperature heat capacity experiments on a U3Ni3Sn4 single-crystal indicate that below 0.4 K there is a crossover between the previously observed non-Fermi-liquid behavior and a Fermi-liquid state.
|Number of pages||8|
|Journal||Physica B: Condensed Matter|
|State||Published - Oct 2 2000|
Bibliographical noteFunding Information:
The single crystals were grown by L.S. during her stay in Portugal under the support of a NATO fellowship. Research at the University of Kentucky was supported by NSF Grant #INT-9515504. P.E. acknowledges the European Commission for a grant within the TMR Programme. Part of this work was supported by FAPESP (Brazil).
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering