Ultrasonic studies of the heavy fermion compounds

S. W. Lin*, S. Adenwalla, John B Ketterson, M. Levy, Bimal K. Sarma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A review of ultrasonic measurements on the three heavy fermion compounds UPt3, URu2Si2 and CeCu6 is given. These compounds show one or more of the three types of co-operative behavior; Kondo-like effect, antiferromagnetism and superconductivity; all these features are observed as ultrasonic anomalies. Both UPt3 and CeCu6 show a strong coherence effect which is akin to a Kondo-like transition in the electronic system. Velocity anomalies are found at the antiferromagnetic transition for URu2Si2. UPt3 also has an antiferromagnetic transition which is believed to influence the subsequent superconducting ordering. For UPt3, the superconductivity is of an unconventional nature; multiple superconducting phases have been observed and a complete phase diagram has been obtained from high resolution velocity measurements.

Original languageEnglish (US)
Pages (from-to)217-228
Number of pages12
JournalJournal of Low Temperature Physics
Volume89
Issue number1-2
DOIs
StatePublished - Oct 1 1992

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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