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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)

Abstract

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.

Keywords

Nuclear Reaction Analysis Normal State Resistance Superconducting Transition Tempera Calibration Substance Hydrogen Concentration Profile 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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