Magnetoresistance of Epitaxial Fe Wires with Varied Domain Wall Structure
Abstract
The low temperature negative domain wall (DW) contribution to the resistivity observed in expitaxial Fe microstructures has been investigated as a function of film thickness. The DW spin structure changes from Bloch to Neel-like with decreasing film thickness. Results suggest that an interplay between orbital effects in the internal magnetic fields near DWs and thin film surface scattering are at the origin of the observed negative wall contribution.
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