Conductance Spectroscopy of Spin-Triplet Superconductors

Yasuhiro Asano, Yukio Tanaka, Alexandre Avraamovitch Golubov, Satoshi Kashiwaya

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Abstract

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.
Original languageUndefined
Pages (from-to)067005-
JournalPhysical review letters
Volume99
Issue number6
DOIs
Publication statusPublished - 2007

Keywords

  • METIS-242658
  • IR-59151

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