Superconductivity and Hydrogen Depth Profiles in Electrolytically Charged Cu-Implanted Pd

  • W. J. Standish
  • A. Leiberich
  • W. Scholz
  • C. G. Homan
Part of the NATO Conference Series book series (NATOCS, volume 6)


Superconductivity has been observed in Pd foils implanted with Cu at room temperature and subsequently charged electrolytically with H at dry ice temperature. Superconducting transition temperatures, Tc, with onsets as high as 16.6 K have been observed. Hydrogen concentration profiles have been measured to a depth of ~0.2 μm for similar samples at 77 K using the 6.4 MeV resonance of the nuclear reaction 15N(1H,αγ.)12C. A step-wise warmup procedure between 77 K and 273 K produces considerable variations both in the superconducting transition curves and in the H depth profiles. The observed concentration changes evolve from an initial ratio H/Pd~3 and show a strong positive correlation with Tc.


Nuclear Reaction Analysis Normal State Resistance Superconducting Transition Tempera Calibration Substance Hydrogen Concentration Profile 
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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • W. J. Standish
    • 1
  • A. Leiberich
    • 1
  • W. Scholz
    • 1
  • C. G. Homan
    • 2
  1. 1.Department of PhysicsSUNY/AlbanyAlbanyUSA
  2. 2.Benet Weapons LaboratoryARRADCOMWatervlietUSA

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