Abstract
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) |
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Pages (from-to) | 1210-1211 |
Number of pages | 2 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 272-276 |
DOIs | |
State | Published - May 2004 |
Event | Proceedings of the International Conference on Magnetism - Rome, Italy Duration: Jul 27 2003 → Aug 1 2003 |
Bibliographical note
Funding Information:This work was supported primarily by the MRSEC Program of the National Science Foundation under Award Number DMR-0212302.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
Keywords
- Exchange bias
- Seed layer roughness
- Training effect