Pressure-Dependent Pair Breaking in SuperconductingLa3−xCeXIn Alloys

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Abstract
A minimum has been observed in the variation of the superconducting transition temperature of La3−xCex In alloys with pressure. From this it is inferred that the pair-breaking parameter initially increases with pressure and then goes through a maximum associated with a transition of the Ce impurity from a magnetic to nonmagnetic state.