Abstract
The results of dc susceptibility, magnetization, magnetic relaxation and specific heat measurements on U2CuGa3, a compound reported early in the literature as exhibiting interesting magnetic properties, are presented. The temperature dependence of susceptibility measured in the zero-field cooling (ZFC) mode and in the field cooling (FC) mode displays spin-glass behavior below a characteristic temperature Tf (∼16K) in agreement with the literature. As a new evidence for the formation of spin-glass state in this compound, the specific heat data do not show any visible singularity around Tf indicating the absence of long-range magnetic order at this temperature. Furthermore, the characteristic remanence effect and magnetic relaxation on a macroscopic time scale are also observed below Tf. The experimental results are compared with those of orthorhombic CeCu2-type spin-glass compound U2AuGa 3 and hexagonal AlB2-type spin-glass compound U 2PdSi3.
Original language | English |
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Pages (from-to) | 226-229 |
Number of pages | 4 |
Journal | Journal of Alloys and Compounds |
Volume | 374 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2004 Jul 14 |
Keywords
- Magnetic relaxation
- Specific heat
- Spin-glass
- UCuGa
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry