Conductance of a junction between a normal metal and a Berezinskii superconductor |
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Authors: | Ya V Fominov |
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Institution: | (1) Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 119334, Russia |
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Abstract: | The conductance of a junction between a normal metal and a superconductor having the symmetry proposed by Berezinskii is studied
theoretically. The main feature of this symmetry is the odd frequency dependence of the anomalous Green’s function, which
makes possible the s-wave triplet superconducting state (the Berezinskii superconductor). The Andreev reflection (which links
positive and negative energies) is sensitive to the energetic symmetry; as a result, the conductance of the junction involving
the Berezinskii superconductor is qualitatively different from the case of a conventional superconductor. Experimentally,
the obtained results can be employed to test the possibility of the Berezinskii superconductivity proposed for Na
x
CoO2 and to identify the odd-ω component predicted for superconductor-ferromagnet systems.
The text was submitted by the author in English. |
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