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Publication Citation: Experimental separability of channeling giant magnetoresistance in Co/Cu/Co

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Author(s): William E. Bailey; Stephen E. Russek; X.-G. Zhang; W. H. Butler;
Title: Experimental separability of channeling giant magnetoresistance in Co/Cu/Co
Published: July 13, 2006
Abstract: The magnitude of the electronic channeling contribution is a significant open issue in the understanding of giant magnetoresistance (GMR). We show that for the technologically important system Co/Cu/Co, channeling GMR can be isolatedand quantified experimentally through measurements in the limit of rapid surface diffuse scattering. First-principles based Boltzmann transport calculation are compared with experimental in-situ magnetoconductance data, which support the possibility of a significant contribution from channeling. Cyclic control of atomic-scale surface roughness, applied during in-situ measurement, will enable a quantitative estimate of the channeling contribution.
Citation: Physical Review B (Condensed Matter and Materials Physics)
Volume: 72
Issue: 1
Pages: pp. 012409-1 - 012409-4
Research Areas: Electromagnetics
PDF version: PDF Document Click here to retrieve PDF version of paper (321KB)