Ultrasound attenuation in Sr 2RuO 4: An angle-resolved study of the superconducting gap function

C. Lupien, W. A. MacFarlane, Cyril Proust, Louis Taillefer, Z. Q. Mao, Y. Maeno

Research output: Contribution to journalArticlepeer-review

128 Scopus citations


The intrinsic angular resolution of ultrasound attenuation was used to directly probe the anisotropy of the quasiparticle excitation spectrum of superconducting Sr 2RuO 4 in zero magnetic field. The power law dependence of the ultrasound attenuation persisting down to T c/30 established the existence of nodes in the gap function of the compound.

Original languageEnglish (US)
Pages (from-to)5986-5989
Number of pages4
JournalPhysical review letters
Issue number26 I
StatePublished - Jun 25 2001

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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