Microwave surface impedance measurements on the heavy fermion superconductor UPt3

C. T. Lin, Bimal K. Sarma, J. B. Ketterson

Research output: Contribution to journalArticlepeer-review

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 languageEnglish (US)
Pages (from-to)654-655
Number of pages2
JournalPhysica B: Condensed Matter
Volume259-261
DOIs
StatePublished - 1999

Keywords

  • Microwave
  • Superconductor
  • UPt

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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