Spin flip diffusion length and giant magnetoresistance at low temperatures
- 16 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (20), 3274-3277
- https://doi.org/10.1103/physrevlett.72.3274
Abstract
Measurements at 4.2 K of the magnetoresistance of Co/AgMn, Co/CuMn, Co/AgPt, and Co/CuPt multilayers with the current perpendicular to the layer planes (CPP-MR) show effects of reduced spin diffusion lengths due to alloying of the nonmagnetic metal with impurities that produce spin-spin (Mn) or spin-orbit (Pt) scattering. Combining the data with a theory by Valet and Fert gives the spin diffusion lengths in the alloys.Keywords
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