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Magnetic susceptibility of UPt3 in high magnetic fields

✍ Scribed by T. Müller; W. Joss; L. Taillefer

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
218 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

We measured the magnetic susceptibility on a high-quality single crystal of the heavy-fermion compound UP& in the temperature range from 3.5 to 22 K in steady magnetic fields up to 28 T with the field direction along the a axis of the hexagonal structure. The maximum in the susceptibility at 17 K, due to spinfluctuations, becomes more pronounced with increasing magnetic field and shifts to 13 Kat 10 T. The peak at the metamagnetic transition disappears smoothly with increasing temperature without changing the position at Bc=20 T. We propose a 'phase -diagram' for a crossover from the low temperature (T<17 K) low field (B<20 T) to the high temperature high field paramagnetic spinfluctuation state.

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