Crystal structure and physical properties of U3T3Sn4 (T = Ni, Cu) single crystals

Authors
Shlyk, L Estrela, P Waerenborgh, JC De Long, LE de Visser, A Rojas, DP Gandra, F Almeida, M
Citation
L. Shlyk et al., Crystal structure and physical properties of U3T3Sn4 (T = Ni, Cu) single crystals, PHYSICA B, 292(1-2), 2000, pp. 89-96
Citations number
22
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
292
Issue
1-2
Year of publication
2000
Pages
89 - 96
Database
ISI
SICI code
0921-4526(200010)292:1-2<89:CSAPPO>2.0.ZU;2-R
Abstract
Heat capacity experiments, crystal structure determination and transmission electron microscopy have been carried out on U3Cu3Sn4 singlecrystals. U3Cu 3Sn4 was confirmed to be a heavy-fermion antiferromagnet(T-N = 13(1) K) wit h a low-temperature electronic heat capacity coefficient gamma = 390 mJ/mol (U)K(2). Low-temperature heat capacity experiments on a U3Ni3Sn4 single-cry stal indicate that below 0.4 K there is a crossover between the previously observed non-Fermi-liquid behavior and a Fermi-liquid state. (C) 2000 Elsev ier Science B.V. All rights reserved.