Critical fields and Landau-Ginzburg parameters of the heavy-fermion superconductor UPt sub 3

Journal Article · Sat Jun 01 04:00:00 EDT 1991 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.43.13720· OSTI ID:5564344

Zhao, Z; Behroozi, F; Adenwalla, S; Guan, Y; Ketterson, J B ^[1]; Sarma, B K ^[2]; Hinks, D G ^[3]

---

1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (USA)
2. Department of Physics, University of Wisconsin at Milwaukee, Milwaukee, Wisconsin 53201 (USA)
3. Material Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (USA)

Measurements of both the lower and upper critical fields along all three principal axes of the heavy-fermion superconductor UPt{sub 3} have been performed. A kink in the temperature dependence of the lower critical field, {ital H}{sub {ital c}1}, is observed for all three orientations, which is in agreement with a recent theory by Hess, Tokuyasu, and Sauls. Also, an anisotropy of the temperature dependence of the lower critical field is observed at low temperatures ({ital T}{lt}290 mK). The Landau-Ginzburg parameters are estimated from the experimental results.

• OSTI ID: 5564344
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:16; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
ANISOTROPY
BINARY ALLOY SYSTEMS
CRITICAL FIELD
GINZBURG-LANDAU THEORY
LIMITING VALUES
MAGNETIC FIELDS
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
URANIUM ALLOYS