Parity-sensitive measurements based on ferromagnet/superconductor tunneling junctions

Details Parity-sensitive measurements based on ferromagnet/superconductor tunneling junctions Parity-sensitive measurements based on ferromagnet/superconductor tunneling junctions

2001-05-24

arxiv.org/abs/cond-mat/0105468v2

Physics

Condensed Matter

Superconductivity

4 pages, 5 figure. To appear in J. Phys. Soc. Jpn

Scientific paper

10.1143/JPSJ.70.1885

A method to identify the parity of unconventional superconductors is proposed based on tunneling spectroscopy. For a model of calculation, we adopt a ferromagnet/superconductor (F/S) junction of which tunneling current is spin polarized. The tunneling conductance spectra are shown to be quite sensitive to the direction of the magnetization axis in the ferromagnet only when the superconductor has odd parity. Therefore, it is possible to distinguish the parity of the superconductor by measuring the tunneling spectroscopy in F/S junctions.

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