Magnetic and electrical characterization of lanthanum superconductors with dilute Lu and Pr impurities
arXiv:cond-mat/0511033
Abstract
In this work we present measurements of the electrical conductivity and of the magnetization of La and of La-Pr and La-Lu dilute (up to 2 atomic percent) alloys, from which we determine, very in particular, the influence of dilute magnetic impurities on the upper critical magnetic field amplitude [and then on the superconducting coherence length amplitude and on the Ginzburg-Landau parameter].
10 pages (including 6 figures)