Conductance Spectroscopy of Spin-triplet Superconductors

Details Conductance Spectroscopy of Spin-triplet Superconductors Conductance Spectroscopy of Spin-triplet Superconductors

2007-05-07

arxiv.org/abs/0705.0829v1

Phys. Rev. Lett. 99, 067005 (2007)

Physics

Condensed Matter

Superconductivity

4pages, 3 figures embedded

Scientific paper

10.1103/PhysRevLett.99.067005

We propose a novel experiment to identify the symmetry of superconductivity on the basis of theoretical results for differential conductance of a normal metal connected to a superconductor. The proximity effect from the superconductor modifies the conductance of the remote current depending remarkably on the pairing symmetry: spin-singlet or spin-triplet. The clear-cut difference in the conductance is explained by symmetry of Cooper pairs in a normal metal with respect to frequency. In the spin-triplet case, the anomalous transport is realized due to an odd-frequency symmetry of Cooper pairs.

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