Normal metal to ferromagnetic superconductor tunneling

Details Normal metal to ferromagnetic superconductor tunneling Normal metal to ferromagnetic superconductor tunneling

2004-01-24

arxiv.org/abs/cond-mat/0401480v2

J.Phys.:Condens.Matter 17 (2005) 697-706

Physics

Condensed Matter

Superconductivity

6 pages, 4 figurs

Scientific paper

10.1088/0953-8984/17/4/012

We study the point-contact tunneling between normal metal and ferromagnetic superconductor. In the case of magnon-induced pairing the tunneling conductance is continuous and smooth function of the applied voltage. For small values of the applied voltage the Ohm law holds. We show that one can obtain the magnetization and the superconducting order parameter from the tunneling conduc- tance. In the case of paramagnon-induced superconductivity the tunneling does not depend on the magnetization. We argue that tunneling experiment can unambiguously determine the correct pairing mechanism in the ferromagnetic superconductors.

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