TITLE

Complex impedance of a spin injecting junction

AUTHOR(S)
Rashba, Emmanuel I.
PUB. DATE
April 2002
SOURCE
Applied Physics Letters;4/1/2002, Vol. 80 Issue 13, p2329
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Theory of the ac spin injection from a ferromagnetic electrode into a normal conductor through a tunnel or Schottky contact is developed. Diffusion and relaxation of nonequilibrium spins results in a frequency-dependent complex impedance Z(ω) controlled by the spin relaxation rates and the resistances involved. Explicit expression for Z(ω) is presented. Experimental investigation of the frequency dependence of Z should allow measuring spin relaxation times in both conductors, their effective resistances, and also the parameters of the contact controlling the spin injection.
ACCESSION #
6391211

 

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