| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1626635 | Journal of Alloys and Compounds | 2007 | 6 Pages |
Abstract
U4TGa12 (T = Fe, Co, Rh and Pd) compounds represent a new family of isostructural heavy-fermion materials. They crystallize in the cubic structure type Y4PdGa12 (Im3¯m) which consists of the doubling of the UGa3 (AuCu3-type, Pm3¯m) elementary cell with a partial ordered occupancy (1/4) of the gallium octahedra by the transition metal atoms. Their magnetic and electronic properties (resistivity, magnetization and specific heat) have been investigated. All compounds display a moderately enhanced value of the Sommerfeld coefficient γ (80–140 mJ/mol U K2) whereas only U4PdGa12 shows the occurrence of an antiferromagnetic order below TN = 43 K.
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Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
R. Jardin, E. Colineau, J.-C. Griveau, P. Boulet, F. Wastin, J. Rebizant,