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Anomalous s-wave proximity-induced Josephson effects in UBe13, CeCu2Si2, and LaBe13: A new probe of heavy-fermion superconductivity

  • Author(s): Han, S
  • Ng, KW
  • Wolf, EL
  • Braun, HF
  • Tanner, L
  • Fisk, Z
  • Smith, JL
  • Beasley, MR
  • et al.
Abstract

Anomalous proximity-induced s-wave superconductivity has been observed via the ac Josephson effect and the magnetic field and temperature dependences of the Josephson current in Nb/CeCu2Si2, Nb/LaBe13, and Nb/UBe13 junctions. The origin of the proximity-induced Josephson effect and its utility in discovering the pairing type in heavy-fermion metals are discussed. © 1985 The American Physical Society.

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