Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor

Nicolas Doiron-Leyraud, Cyril Proust (), David LeBoeuf, Julien Levallois, Jean-Baptiste Bonnemaison, Ruixing Liang, D. A. Bonn, W. N. Hardy and Louis Taillefer ()
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Nicolas Doiron-Leyraud: Université de Sherbrooke, Sherbrooke, Canada J1K 2R1
Cyril Proust: Laboratoire National des Champs Magnétiques Pulsés (LNCMP), UMR CNRS-UPS-INSA 5147, Toulouse 31400, France
David LeBoeuf: Université de Sherbrooke, Sherbrooke, Canada J1K 2R1
Julien Levallois: Laboratoire National des Champs Magnétiques Pulsés (LNCMP), UMR CNRS-UPS-INSA 5147, Toulouse 31400, France
Jean-Baptiste Bonnemaison: Université de Sherbrooke, Sherbrooke, Canada J1K 2R1
Ruixing Liang: University of British Columbia, Vancouver, Canada V6T 1Z4
D. A. Bonn: University of British Columbia, Vancouver, Canada V6T 1Z4
W. N. Hardy: University of British Columbia, Vancouver, Canada V6T 1Z4
Louis Taillefer: Université de Sherbrooke, Sherbrooke, Canada J1K 2R1

Nature, 2007, vol. 447, issue 7144, 565-568

Abstract: Superconductivity pair Two papers in this issue report notable contributions towards an understanding of high-temperature superconductivity, still an elusive goal after more than 20 years of intensive research. Doiron-Leyraud et al. report the observation of a Fermi surface in a high-temperature superconductor, a phenomenon regarded as the classic signature of a metal. Gomes et al. tackled the long-standing question of whether the gap in the electronic energy spectrum at temperatures above the critical temperature of a high-temperature superconductor is associated with electron pairing. They find that it is. With these two elegant experimental papers adding some solid new data to the mix, it is the turn of the theorists to work out the implications for superconductivity mechanisms.

Date: 2007
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DOI: 10.1038/nature05872

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