Fulltext

Superfluid Density and Angular Dependence of the Energy Gap inOptimally Doped (BiPb)2(SrLa)2CuO6+ δ

Strässle, S. ; Khasanov, R. ; Kondo, T. ; Heron, D. ; Kaminski, A. ; Keller, H. ; Lee, S. ; Takeuchi, T.

In: Journal of Superconductivity and Novel Magnetism, 2009, vol. 22, no. 2, p. 189-193

Zum persönliche Liste hinzufügen
    Titel
    • Superfluid Density and Angular Dependence of the Energy Gap inOptimally Doped (BiPb)2(SrLa)2CuO6+ δ
    Autor
    • Strässle, S.. Physik-Institut der Universität Zürich, Universität Zürich, 8057, Zürich, Switzerland
    • Khasanov, R.. Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
    • Kondo, T.. Ames Laboratory and Department of Physics and Astronomy, Iowa State University, 50011, Ames, IA, USA
    • Heron, D.. School of Physics and Astronomy, University of St. Andrews, KY16 9SS, Fife, UK
    • Kaminski, A.. Ames Laboratory and Department of Physics and Astronomy, Iowa State University, 50011, Ames, IA, USA
    • Keller, H.. Physik-Institut der Universität Zürich, Universität Zürich, 8057, Zürich, Switzerland
    • Lee, S.. School of Physics and Astronomy, University of St. Andrews, KY16 9SS, Fife, UK
    • Takeuchi, T.. Department of Crystalline Materials Science, Nagoya University, 464-8603, Nagoya, Japan
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Journal of Superconductivity and Novel Magnetism, 2009, vol. 22, no. 2, p. 189-193. Springer US; http://www.springer-ny.com
    Andere elektronische Ausgabe
    OAI-PMH-ID
    • oai:doc.rero.ch:313023
    Summary
    We present a muon-spin rotation study of the optimally doped cuprate superconductor (BiPb)2(SrLa)2 CuO6+δ . The measured magnetic field dependence of the in-plane magnetic penetration λ ab suggests superconductivity with a dominant d-wave order parameter. The comparison of the temperature dependence of λ ab with calculations, assuming the angular gap symmetry as obtained from photoemission measurements, is consistent with a partial suppression of the quasi-particle weight towards the anti-nodal region of the Fermi surface. This suggests that the superconducting and the pseudogap state are dominated by different parts of the Fermi surface