Abstract
We succeeded in growing a high-quality single crystal of the heavy fermion superconductor UPd2Al3 and observed the de Haas-van Alphen (dHvA) oscillation in both the normal and superconducting mixed states. The dHvA frequency, which is proportional to a maximum cross-sectional area of the electron Fermi surface labelled α. does not change in magnitude between the normal and mixed states, while the cyclotron mass of 5.7 m0 in the normal state is reduced to 3.577 m0 at 0.7 Hc2, and the corresponding Dingle temperature of 0.20 K in the normal state is increased to 0.39 K at 0.7 Hc2. Here, Hc2 of 39kOe is the upper critical field along the [0001] direction in the hexagonal structure.
Original language | English |
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Pages (from-to) | 342-345 |
Number of pages | 4 |
Journal | journal of the physical society of japan |
Volume | 68 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 1999 |
Externally published | Yes |
Keywords
- De Haas-van Alphen Effect
- Heavy fermion superconductor
- UPdAl
ASJC Scopus subject areas
- Physics and Astronomy(all)