Magnetic multilayers of the form Co/Ag/CoO, grown on Si3N 4 substrates, with seed layers of Ag or Ta of various thicknesses were studied. There is a dramatic difference between the exchange fields and between the coercive fields for the differing seed layers such that, for a Ag seed layer, the loop can be fully shifted to one side of zero field whereas, with a Ta seed layer, this behavior is not observed. One important difference in the seed layers is the layer roughness; the Ag seed layer is as much as six times rougher than the Ta layer, as determined by atomic force microscopy.
|Original language||English (US)|
|Number of pages||2|
|Journal||Journal of Magnetism and Magnetic Materials|
|State||Published - May 2004|
|Event||Proceedings of the International Conference on Magnetism - Rome, Italy|
Duration: Jul 27 2003 → Aug 1 2003
Bibliographical noteFunding Information:
This work was supported primarily by the MRSEC Program of the National Science Foundation under Award Number DMR-0212302.
Copyright 2008 Elsevier B.V., All rights reserved.
- Exchange bias
- Seed layer roughness
- Training effect