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MAGNETIC HEAT-CAPACITY OF UNIXPT1-X

DEPODESTA, M; LESTER, C; MCEWEN, KA; ESPESO, J; SAL, JCG; (1995) MAGNETIC HEAT-CAPACITY OF UNIXPT1-X. In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. (pp. 1359 - 1360). ELSEVIER SCIENCE BV

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Abstract

We report heat capacity measurements on annealed polycrystalline samples of UNixPt1-x (x = 1, 0.8, 0.6, 0.4, 0.2, 0) in zero field and in a 6 T magnetic field, over the temperature range 2 to 70 g. Anomalies are seen in UPt and UNi0.2Pt0.8, at 26.2 and 14.8 K. UNi and UNi0.8Pt0.2 show no signs of magnetic order. Weak transitions have been noted in several compounds, but their behaviour on annealing and correlation between compounds indicates their origin is probably due to mixed phases. An applied field of 6 T has no effect on the transition temperatures. The electronic heat capacity term gamma decreases roughly linearly from 80 mJ K-2 mol(-1) for UPt to 25 mJ K-2 mol(-1) for UNi and is unaffected by an applied field of 6 T.

Type: Proceedings paper
Title: MAGNETIC HEAT-CAPACITY OF UNIXPT1-X
Event: International Conference on Magnetism - ICM 94 (13th IUPAP Triennial Conference on Magnetism)
Location: WARSAW, POLAND
Dates: 1994-08-22 - 1994-08-26
UCL classification: UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Maths and Physical Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/1309927
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