Weak localization correction to the ferromagnet-superconductor interface resistance

Edward McCann, Vladimir I. Fal’ko, A. F. Volkov, and C. J. Lambert
Phys. Rev. B 62, 6015 – Published 1 September 2000
PDFExport Citation

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.

  • Received 7 April 2000

DOI:https://doi.org/10.1103/PhysRevB.62.6015

©2000 American Physical Society

Authors & Affiliations

Edward McCann1, Vladimir I. Fal’ko1, A. F. Volkov1,2, and C. J. Lambert1

  • 1School of Physics and Chemistry, Lancaster University, Lancaster, LA1 4YB, United Kingdom
  • 2Institute for Radio-Engineering and Electronics, Moscow, Russia

References (Subscription Required)

Click to Expand
Issue

Vol. 62, Iss. 9 — 1 September 2000

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×