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Interference between an s-wave superconductor and Sr2RuO4

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  • UserTaketomo Nakamura, Kyoto University
  • ClockThursday 25 February 2010, 11:15-11:45
  • HouseTCM Seminar Room.

If you have a question about this talk, please contact Michael Sutherland.

We have fabricated superconducting proximity junctions with an s-wave superconductor Pb and a eutectic crystal of Sr2RuO4-Ru. We have reproducibly found that the critical current Ic appears above 1.5 K but it is sharply suppressed just below 1.5 K (the bulk Tc of pure Sr2RuO4). Curiously, Ic becomes strong again below about 1.2 K. In this presentation, I will discuss possible mechanisms to explain this unusual behavior of Ic. The collaborators in this work are Ryoji NAKAGAWA , Shingo YONEZAWA , Takahito TERASHIMA , and Yoshiteru MAENO .

This talk is part of the Quantum Matter Seminar series.

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