The magnetic phase diagram of UPt3 alloyed with Pd
β Scribed by F.S Tautz; A de Visser; M Mihalik; A.A Menovsky; J.J.M Franse
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 211 KB
- Volume
- 223-224
- Category
- Article
- ISSN
- 0921-4526
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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).
The tetracritical point seen in the H-T phase diagram of UPt3 for several orientations of H strongly constrains Ginzburg-Landau (GL) theories, as the GL "Hamiltonian" must have a conserved quantity Q. A two-component vector order parameter model has a Q for HNc , but no tetracritical point. Among ac