De Haas–van Alphen Effect in Single Crystal [Formula presented]

E. A. Yelland, J. R. Cooper, A. Carrington, N. E. Hussey, P. J. Meeson, S. Lee, Ayako Yamamoto, S. Tajima

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We report observations of quantum oscillations in single crystals of the high temperature superconductor [Formula presented]. Three de Haas–van Alphen frequencies are clearly resolved. Comparison with band structure calculations strongly suggests that two of these come from a single warped Fermi surface tube along the [Formula presented] direction, and that the third arises from cylindrical sections of an in-plane honeycomb network. The measured values of the effective mass range from [Formula presented]. By comparing these to calculated band masses, we find that the electron-phonon coupling strength [Formula presented] is a factor of [Formula presented] larger for the [Formula presented]-axis tube orbits than for the in-plane network orbit, in accord with recent microscopic calculations.

Original languageEnglish
Number of pages1
JournalPhysical Review Letters
Issue number21
Publication statusPublished - 2002 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yelland, E. A., Cooper, J. R., Carrington, A., Hussey, N. E., Meeson, P. J., Lee, S., Yamamoto, A., & Tajima, S. (2002). De Haas–van Alphen Effect in Single Crystal [Formula presented]. Physical Review Letters, 88(21).