NQR Study of CU in YBa2Cu3O6.95

  • M. Kieninger
  • G. Majer
  • A. Seeger
Conference paper


We report on Cu nuclear spin-lattice relaxation measurements on polycrystalline powder samples of the high — T C superconductor YBa2Cu3O6.95 (TC=92 K) in the temperature range between 4.5 K to 280 K. Above as well as below T C the spin-lattice relaxation is mainly magnetic in origin. Whereas down to about 35 K the relaxation rates are controlled by the interaction of the Cu nuclear magnetic moments with the conduction electrons, at low temperatures a second spin relaxation mechanism becomes dominant.

PACS numbers

76.60.G 74.30.G 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • M. Kieninger
    • 1
  • G. Majer
    • 1
  • A. Seeger
    • 1
  1. 1.Institut für PhysikMax-Planck-Institut für MetallforschungStuttgart 80Germany

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