Thermodynamic stability of the superconducting phase diagram of UPt3
β Scribed by N. H. Dijk; A. Visser; J. J. M. Franse; L. Taillefer
- Publisher
- Springer US
- Year
- 1993
- Tongue
- English
- Weight
- 714 KB
- Volume
- 93
- Category
- Article
- ISSN
- 0022-2291
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π SIMILAR VOLUMES
The superconducting phase diagram of heavy-fermion UPt 3 has been investigated by means of sensitive dilatometry. The thermodynamic analysis indicates that all the phase lines are of second order. Ehrenfest relations reveal that the C phase is the stable phase under uniaxial pressure (p II e).
We have measured the specific heat (0.3 < T < 0.6 K) of superconducting UPt3 in an external magnetic field (B< 1T) applied along the c-axis of the hexagonal crystal. We studied the field dependence of the two superconducting phases re orted before in zero field (1). The phase diagram for B//c has a