Physics – Condensed Matter – Superconductivity
Scientific paper
2005-07-29
Journal of Physics and Chemistry of Solids 67, 384 (2006)
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures, published on Journal of Physics and Chemistry of Solids
Scientific paper
10.1016/j.jpcs.2005.10.118
We present Point-Contact experiments on polycrystalline RuSr$_2$GdCu$_2$O$_8$ samples. The majority of tunneling curves shows a zero-bias conductance peak, which is modeled by assuming a d-wave pairing symmetry of the superconducting order parameter.The magnetic field dependence of the conductance spectra has been measured in very stable junctions. In some cases, due to the granularity of the samples, clusters of grains in series introduce peculiar features in the conductance spectra.
Bobba Fabrizio
Cucolo Anna Maria
Giubileo Filippo
Piano Samanta
Vecchione Antonio
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