We have done de Haas-van Alphen (dHvA) experiments in UPt3 and have observed at least three new branches. One of them is in the basal plane and the others are around the  direction. The branch with a dHvA frequency of 2.7 x 107 Oe in the field along  possesses a large mass of 40m0.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering