Abstract
By making a straightforward reformulation of the Levy-Zhang spin-mistracking model, we show that it is possible to extract the spin asymmetry of a current from measurements of domain wall resistance. Experiments on epitaxial films of FePd are reported, showing that, while the micromagnetic structure of the sample is stable, the resistivity and the domain wall resistance change by a factor between helium and room temperature. The temperature dependence of the spin asymmetry of the current has been determined over a wide range in a single material.
- Received 14 August 2003
DOI:https://doi.org/10.1103/PhysRevLett.92.097206
©2004 American Physical Society