Physics – Condensed Matter – Superconductivity
Scientific paper
2007-04-10
PHYSICA C 466 (1-2): 131-141 (2007)
Physics
Condensed Matter
Superconductivity
24 pages, 10figures
Scientific paper
10.1016/j.physc.2007.07.003
We argue that claims about magnetic field dependence of the magnetic field penetration depth lambda, which were made on the basis of moun-spin-rotation studies of some superconductors, originate from insufficient accuracy of theoretical models employed for the data analysis. We also reanalyze some of already published experimental data and demonstrate that numerical calculations of Brandt [E.H. Brandt, Phys. Rev. B 68, 54506 (2003)] may serve as a reliable and powerful tool for the analysis of the data collected in experiments with conventional superconductors. Furthermore, one can use this approach in order to distinguish between conventional and unconventional superconductors. It is unfortunate that these calculations have practically never been employed for such analyses.
Keller Hugo
Landau I. L.
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