Abstract
We report on an effect of reduced dimensionality on the magnetotransport in cobalt layers sandwiched by platinum. In a current in-plane geometry it is found that the resistivity depends on the magnetization orientation within the plane perpendicular to the current direction. The resistivity shows a symmetry adapted dependence on the angle to the surface normal, with the maximum along the surface normal. The Co thickness dependence of the effect in sandwiches clearly points out that the mechanism behind this effect originates at the interfaces and is disparate to the texture induced geometrical size effect.
- Received 14 December 2010
DOI:https://doi.org/10.1103/PhysRevLett.106.217207
© 2011 American Physical Society