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Out-of-plane quasiparticle dynamics of the cuprate superconductors belowT c in microwave region

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Abstract

We have investigated the anisotropic quasiparticle conductivity in the superconducting state for microwave frequencies in YBa2Cu3O7−δ (YBCO) and La2−xSrxCuO4 (LSCO) with several hole concentrations. Common features were found for YBCO and LSCO. That is, in underdoped materials, the strong two dimensional nature was found to be retained even below Tc. On the other hand, in optimally doped and overdoped materials, the anisotropy decreases rapidly below Tc. In particular, in YBCO, it is suggested that the c-axis transport becomes coherent below Tc.

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Authors and Affiliations

  1. Department of Basic Science, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, 153, Tokyo, Japan

    A. Maeda, H. Kitano, T. Hanaguri, T. Shibauchi & K. Uchinokura

  2. Department of Applied Physics, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, 113, Tokyo, Japan

    T. Shibauchi & K. Uchinokura

Authors
  1. A. Maeda
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  2. H. Kitano
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  3. T. Hanaguri
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  4. T. Shibauchi
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  5. K. Uchinokura
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Maeda, A., Kitano, H., Hanaguri, T. et al. Out-of-plane quasiparticle dynamics of the cuprate superconductors belowT c in microwave region. J Low Temp Phys 105, 323–328 (1996). https://doi.org/10.1007/BF00768406

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  • DOI: https://doi.org/10.1007/BF00768406

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