Point Contact Study of the Superconducting Order Parameter in RuSr2GdCu2O8

Details Point Contact Study of the Superconducting Order Parameter in RuSr2GdCu2O8 Point Contact Study of the Superconducting Order Parameter in RuSr2GdCu2O8

2005-07-29

arxiv.org/abs/cond-mat/0508003v1

Int. J. Mod. Phys. B 19, 323 (2005)

Physics

Condensed Matter

Superconductivity

3 pages, 2 figures, IJMPB style. Presented at New3SC5 Conference, China, June 2004

Scientific paper

10.1142/S0217979205028505

We have performed a detailed study of the conductance characteristics obtained by point contact junctions realized between a normal Pt/Ir tip and syntered RuSr2GdCu2O8 (Ru-1212) samples. Indeed, this compound is subject of great interest due to the coexistence of both magnetic order and bulk superconductivity. In our experiments, the low temperature tunneling spectra reproducibly show a zero bias conductance peak that can be well reproduced by a generalized BTK model in the case of d-wave symmetry of the superconducting order parameter.

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