Superconducting double transition in a heavy-fermion material UPt sub 3

Journal Article · Mon Jun 24 00:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.3293· OSTI ID:5749804

Machida, K; Ozaki, M ^[1]

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1. Department of Physics, Okayama University, Okayama 700, Japan (JP) Department of Physics, Kyoto University, Kyoto 606, Japan

To explain the field-independent phase diagrams observed in UPt{sub 3} a scenario based on a superconducting (SC) class belonging to the one-dimensional representation (1D-rep) with odd parity is proposed. The antiferromagnetic (AF) order lifts the spin-space degeneracy of the pairing function to split {ital T}{sub {ital c}}. A nontrivial coupling of the two orderings, SC and AF, is derived and a Ginzburg-Landau theory is developed to examine the successive phase transitions. It is demonstrated that the present 1D-rep scenario is more consistent with various experiments on UPt{sub 3} than the previous 2D-rep scenario.

• OSTI ID: 5749804
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:25; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
ANTIFERROMAGNETISM
BINARY ALLOY SYSTEMS
CRITICAL FIELD
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GINZBURG-LANDAU THEORY
INTERACTIONS
INTERMETALLIC COMPOUNDS
MAGNETIC FIELDS
MAGNETISM
PAIRING INTERACTIONS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
URANIUM ALLOYS