Superconducting Gap in [Formula presented]: Electronic Raman Scattering Measurements of Single Crystals

J. W. Quilty, S. Lee, A. Yamamoto, S. Tajima

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Polarization-resolved Raman scattering measurements were performed on [Formula presented] single crystals to determine the magnitude, symmetry, and temperature dependence of the superconducting gap. A single sharp peak due to Cooper pair breaking appears in the electronic continuum below [Formula presented], reaching a maximum Raman shift of [Formula presented] [Formula presented] and showing up to [Formula presented] anisotropy between polarized and depolarized spectra. The temperature dependence of [Formula presented] follows that predicted from BCS theory, while the anisotropy decreases with decreasing temperature. It is concluded that the Raman results are consistent with a slightly anisotropic [Formula presented]-wave gap in a conventional BCS superconductor.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical Review Letters
Issue number8
Publication statusPublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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