Published December 1, 1996
| Version v1
Journal article
Search for a spontaneous magnetization in the superconducting B-phase of UPt3
Creators
- 1. Nagoya Univ. (Japan). Dept. of Physics
- 2. Dept. of Physics, Osaka Univ. (Japan)
- 3. Advanced Science Research Center, Japan Atomic Energy Research Inst., Ibaraki (Japan)
Description
We report the results of a search for a spontaneous magnetization in the superconducting B-phase of UPt3 which is predicted to exist because of broken time-reversal symmetry. We have measured the change of magnetic flux upon the superconducting transition in a field very close to zero by using a SQUID magnetometer. Our result gives the upper limit of 2 mG for the spontaneous internal field, one order of magnitude smaller than obtained by a recent μSR measurement. The small value favors the theory of orbital degeneracy of the pair wave function over the theory of spin degeneracy. (orig.)
Additional details
Publishing Information
- Journal Title
- Europhysics Letters
- Journal Volume
- 36
- Journal Issue
- 7
- Journal Page Range
- p. 545-549.
- ISSN
- 0295-5075
- CODEN
- EULEEJ
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 28022904
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- COOPER PAIRS; MAGNETIC FLUX; MAGNETIZATION; PLATINUM ALLOYS; SOLID SOLUTIONS; SUPERCONDUCTORS; URANIUM ALLOYS; WAVE FUNCTIONS
- Descriptors DEC
- ACTINIDE ALLOYS; ALLOYS; DISPERSIONS; FUNCTIONS; HOMOGENEOUS MIXTURES; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MIXTURES; PHYSICAL PROPERTIES; PLATINUM METAL ALLOYS; SOLUTIONS; TRANSITION ELEMENT ALLOYS