Microwave complex impedance measurements on the heavy fermion superconductor UBe13

S. W. Lin*, C. T. Lin, Bimal K. Sarma, G. R. Stewart, J. B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The complex microwave impedance in the frequency range of ∼ 8-36 GHz was measured in the superconducting state of a well-characterized heavy fermion single crystal of UBe13. This microwave photon energy ranges roughly from 15% to 60% of the zero-temperature (BCS) energy gap and is higher than previous measurements. Large changes are observed in the complex impedance when the sample is cooled below Tc for all frequencies measured. The surface impedance cannot be described by the Mattis-Bardeen theory in the dirty limit for a conventional superconductor.

Original languageEnglish (US)
Pages (from-to)161-166
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number2-3
StatePublished - Jul 8 1996

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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