Published February 1994
| Version v1
Journal article
Constraints on the order parameter of superconducting UPt3 from the phase diagram
Creators
- 1. Dept. of Physics and Astronomy and Materials Research Center, Northwestern Univ., Evanston, IL (United States)
Description
The tetracritical point seen in the H-T phase diagram of UPt3 for several orientations of H strongly constraints 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 H parallel c, but no tetracritical point. Among accidentally nearly degenerate like-parity order parameters, only the case where one behaves as an A and the other as a B representation of D6h (the point group of UPt3) is allowed. This model is studied and compared to experiment. (orig.)
Additional details
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 194-196
- Journal Page Range
- p. 2017-2018.
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- 20. IUPAP international conference on low temperature physics (LT-20).
- Dates
- 4-11 Aug 1993.
- Place
- Eugene, OR (United States).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 25057365
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CONSERVATION LAWS; CRITICAL FIELD; ENERGY LEVELS; GINZBURG-LANDAU THEORY; INTERMETALLIC COMPOUNDS; ORDER PARAMETERS; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; PLATINUM ALLOYS; SUPERCONDUCTIVITY; URANIUM ALLOYS
- Descriptors DEC
- ACTINIDE ALLOYS; ALLOYS; DIAGRAMS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; INFORMATION; MAGNETIC FIELDS; PHYSICAL PROPERTIES; PLATINUM METAL ALLOYS