Abstract
The classical resistance of a contact between a ferromagnet (F) and a superconductor (S) acquires an additional contact term as compared to the contact between a ferromagnet and a normal metal. The necessity to match spin-polarized current in a ferromagnet to spinless current in the superconductor results in the accumulation of nonequilibrium polarization near the F/S interface. In the present work, we show that the weak localization correction to the classical diffusion coefficient δD is dependent on the degree of polarization, with majority spins more likely to be reflected from the interface than minority spins. Taking into account the change in the spin polarized particle distribution in the F wire arising from δD, we calculate the weak localization correction to the F/S contact resistance.
Original language | English |
---|---|
Pages (from-to) | 6015-6020 |
Number of pages | 6 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 62 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 Sept 2000 |
Research Beacons, Institutes and Platforms
- National Graphene Institute