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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.

Published Web Location

https://doi.org/10.1103/physrevb.32.7567Creative Commons 'BY' version 4.0 license
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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