Superconductivity and the d-Shell

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Science  13 Jan 1967:
Vol. 155, Issue 3759, pp. 191-193
DOI: 10.1126/science.155.3759.191


The various isotope effects on the superconducting transition temperature of Mo2B and W2B have been measured. Together with resistivity data they indicate that the d-shell forms a highly stable electron configuration for molybdenum and tungsten. This leads to an understanding of high superconducting transition temperatures.