Superconductivity and the d-Shell.
The various isotope effects on the superconducting transition temperature of Mo(2)B and W(2)B 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.
Engelhardt
J J
JJ
Webb
G W
GW
Matthias
B T
BT