Spin-accumulation-induced resistance in mesoscopic ferromagnet-superconductor junctions

Physical Review B - Condensed Matter and Materials Physics

Volumn 60, Issue 24, 1999, Pages 16549-16552

  Jedema, F J ^a   van Wees, B J ^a   Hoving, B H ^a   Filip, A T ^a   Klapwijk, T M ^a  

^a UNIVERSITY OF GRONINGEN   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001630031     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.60.16549     Document Type: Article

References (22)

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20. The value of (Formula presented) can only be estimated in relation with the values taken from the tunnel junction and point contact experiments (Refs. 4, 5, and 16) since in our description the spin polarization of the current is not solely determined by the density of states at the Fermi level, but also includes the different spin diffusion constants.
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22. This is made possible by the Andreev reflection provided by the superconductor. In the absence of the superconductor, one would always measure an electrochemical potential between the source and drain contacts.