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arXiv · 0811.1694

Pair weakening in mixed rare-earth nickel borocarbides (R,R')Ni2B2C

J. Freudenberger·K. -H. Mueller·G. Fuchs·M. Wolf·K. Nenkov·L. Schultz
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Abstract

In this study pseudoquaternary rare-earth nickel borocarbide superconductors RxR'1-xNi2B2C have been investigated predominantly in the diluted limit x << 1 or (1 x) << 1. In all of these materials structural disorder results in a reduction of the superconducting transition temperature Tc . Depending on the selection of the rare earth elements R and R' this disorder induced deterioration of superconductivity is combined with magnetic pair breaking of Abrikosov-Gorkov type or pair breaking of non-magnetic impurities in antiferromagnetic superconductors (Morozov-type of pair breaking).

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J. Freudenberger, K. -H. Mueller, G. Fuchs, M. Wolf, K. Nenkov, L. Schultz. 2008-11-11. Pair weakening in mixed rare-earth nickel borocarbides (R,R')Ni2B2C. https://arxiv.org/abs/0811.1694

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