Shape of the upper-critical-field curves in URu sub 2 Si sub 2 : Evidence for anisotropic pairing

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.11649· OSTI ID:6846794

Kwok, W K; DeLong, L E; Crabtree, G W; Hinks, D G ^[1]; Joynt, R ^[2]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (USA)
2. Department of Physics Center for Applied Superconductivity, University of Wisconsin Madison, Madison, Wisconsin 53706 (USA)

Measurements of the upper critical magnetic field {ital H}{sub {ital c}2} of single-crystal URu{sub 2}Si{sub 2} are reported for fields {ital H}{le}8 T and temperatures {ital T}{ge}0.5 K. {ital H}{sub {ital c}2} is strongly anisotropic and exhibits pronounced positive curvature for {bold H}{parallel}{bold a} in the tetragonal basal plane. These features can be explained using a theoretical model that assumes a multicomponent superconducting order parameter that is strongly coupled to the antiferromagnetic moment.

• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6846794
• Journal Information: Physical Review, B: Condensed Matter; (USA), Vol. 41:16; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
RUTHENIUM COMPOUNDS
CRITICAL FIELD
SILICON COMPOUNDS
URANIUM COMPOUNDS
ANISOTROPY
ANTIFERROMAGNETISM
ORDER PARAMETERS
PHASE TRANSFORMATIONS
SUPERCONDUCTIVITY
TYPE-II SUPERCONDUCTORS
ACTINIDE COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
MAGNETIC FIELDS
MAGNETISM
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
656100* - Condensed Matter Physics- Superconductivity
656002 - Condensed Matter Physics- General Techniques in Condensed Matter- (1987-)