Exact solution of the Ginzburg-Landau equations for the upper critical field of multicomponent superconductors

Journal Article · Mon Jan 28 04:00:00 EST 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.512· OSTI ID:5711228

Sundaram, S K; Joynt, R ^[1]

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1. University of Wisconsin-Madison, WI (USA). Department of Physics University of Wisconson-Madison, WI (USA). Applied Superconductivity Center

We present an exact solution of the problem of the upper critical field of an {ital E}{sub 1} or {ital E}{sub 2} superconductor. This resolves a long-standing difficulty in the theory of these materials, since only variational methods have been available up to this time. The solution is valid for all directions of the external field relative to the crystal axes. This makes the anisotropy of the upper critical field into an unambiguous test of unconventional superconductivity. Good agreement with experimental measurements on UPt{sub 3} is found.

• OSTI ID: 5711228
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:4; 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
ALLOYS
ANTIFERROMAGNETISM
CORRELATIONS
CRITICAL FIELD
DATA
ELEMENTARY PARTICLES
ENERGY
FERMIONS
FREE ENERGY
FUNCTIONALS
FUNCTIONS
GINZBURG-LANDAU THEORY
HEAVY LEPTONS
INFORMATION
LEPTONS
MAGNETIC FIELDS
MAGNETISM
NUMERICAL DATA
ORDER PARAMETERS
PHYSICAL PROPERTIES
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
POSTULATED PARTICLES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE
URANIUM ALLOYS