Point-contact tunneling involving low-dimensional spin-triplet superconductors

Details Point-contact tunneling involving low-dimensional spin-triplet superconductors Point-contact tunneling involving low-dimensional spin-triplet superconductors

2003-09-08

arxiv.org/abs/cond-mat/0309195v2

Phys. Rev. Lett. 92, 127001 (2004)

Physics

Condensed Matter

Superconductivity

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.92.127001

We modify and extend previous microscopic calculations of tunneling in superconducting junctions based on a non-equilibrium Green function formalism to include the case of spin-triplet pairing. We show that distinctive features are present in the I-V characteristics of different kinds of junctions, in particular when the effects of magnetic fields are taken into account, that permit to identify the type of pairing. We discuss the relevance of these results in the context of quasi one-dimensional organic superconductors like (TMTSF)_2(PF_6) and layered compounds like Sr_2RuO_4.

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