The present study is motivated by two considerations: to theoretically obtain a solution of magnetoresistance other than a simple layered structure, and to optimize the magnitude of the resistance and magnetoresistance through a geometrically controlled parameter. We have evaluated the resistance and magnetoresistance as a function of the size of a geometrically confined constriction by explicitly solving the macroscopic spindiffusion equations. If we use sets of transport parameters previously found in magnetic multilayered structures, we are able to make a quantitative prediction on the resistance and magnetoresistance in the confined structure.
|Original language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Sep 2004|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics