Giant Magnetoresistance without Defect Scattering
- 23 January 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (4), 586-589
- https://doi.org/10.1103/PhysRevLett.74.586
Abstract
The ballistic transport properties of magnetic metallic multilayers are studied using calculations based on the local-spin-density approximation in which the electrons and the electrons, usually held responsible for conduction and magnetism, respectively, are treated on an equal footing. A giant magnetoresistance of up to 120% is calculated for point contacts of Co/Cu multilayers. The effect can be explained as a slowing down of the electrons by hybridization with electrons which are strongly reflected and partially localized by the spin-dependent interface potentials. The method should be a useful instrument in a systematic search for new materials for magnetoresistive applications.
Keywords
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