Abstract
We have used cavity perturbation techniques to study the microwave surface impedance of the heavy fermion intermetalic compound UPt3 in the superconducting and normal states. The surface impedance as a function of temperature was measured in the frequency range from ∼ 9 to 38 GHz. These microwave photon energies are about 20% to 95% of the estimated zero-temperature energy gap of UPt3. A change of slope was observed in the resistance vs. temperature curves at Tc. No evidence for a collective mode was observed for all the frequencies down to the lowest temperature reached ( ∼ 0.1 K).
Original language | English (US) |
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Pages (from-to) | 654-655 |
Number of pages | 2 |
Journal | Physica B: Condensed Matter |
Volume | 259-261 |
DOIs | |
State | Published - 1999 |
Keywords
- Microwave
- Superconductor
- UPt
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering