Abstract
High superconducting transition temperatures, Tc, of 16.6, 15.6 and 13.6 K have been observed in Pd-(Cu, Ag and Au) alloys, charged with large amounts of H by means of ion implantation at liquid Helium-temperatures. A peculiar phase-transition indicates that weak phonon modes might be responsible for the high Tc-values. The difference between the maximum Tc-values can be described as a type of isotope effect Tc∞M −1/2.
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I wish to thank Profs. W. Buckel, G. Eilenberger and J. Mydosh, and Drs. A. Eichler and H. Wühl for many useful discussions. I also wish to acknowledge the help of Mr. J. Becker in some of these measurements, and the assistance of Mr. W. Evers with the ionimplantation apparatus.
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Stritzker, B. High superconducting transition temperatures in the palladium-noble metal-hydrogen system. Z. Physik 268, 261–264 (1974). https://doi.org/10.1007/BF01669889
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DOI: https://doi.org/10.1007/BF01669889