MAGNETIC-INTERACTIONS WITHIN PATTERNED COBALT NANOSTRUCTURES USING OFF-AXIS ELECTRON HOLOGRAPHY

The magnetization reversal behavior of submicron-sized patterned Co el ements has been studied using off-axis electron holography. Magnetic f ields were applied to the samples in situ to determine both the hyster esis loops of individual elements and the interactions between closely spaced elements. The observations show that an understanding of the f ormation of remanent states is likely to be of particular importance f or the design of magnetic elements for device applications. (C) 1998 A merican Institute of Physics.