Excess current in superconducting Sr2RuO4
Artikel i vetenskaplig tidskrift, 2004

We present results from point-contact measurements on Sr2RuO4 that show a linear dependence of the excess current as a function of temperature and applied magnetic fields over a surprisingly wide range of the phase diagram. We propose an explanation of this finding in terms of a p-wave triplet-pairing state with coupling to a low-energy fluctuation mode. Within this model we obtain a quantitative description of the temperature dependence of the excess current. The impact of surface effects on order parameter and excess current is addressed.

Författare

Frank Laube

Gernot Goll

Matthias Eschrig

Mikael Fogelström

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Ralph Werner

Physical Review B

Vol. 69 14516-

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Fysik