Superconductivity of Palladium and Pd-Alloys Charged with H or D by Ion Implantation at Helium Temperatures
In this paper we would like to consider the production of metastable systems by means of ion implantation into a substrate held at liquid helium temperature. This technique has the great advantage that one can fabricate nearly all types of alloy systems. In most cases the thermal energy at 4 K is sufficiently low to prevent the diffusion and the clustering of the implanted atoms. The investigation of such metastable alloys is very interesting with respect to their superconducting properties. As long as the electron-phonon interaction is the only known interaction producing superconductivity, it is believed that the highest transition temperatures can only be achieved in such “highly sophisticated” metastable alloys.
KeywordsFoil Thickness Liquid Helium Temperature Lattice Instability High Transition Temperature Implantation Time
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