| Autor: |
Ghadimi, M. R., Beschoten, B., Güntherodt, G. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 12/26/2005, Vol. 87 Issue 26, p261903, 3p, 1 Black and White Photograph, 1 Graph |
| Abstrakt: |
We have studied the influence of nonmagnetic defects throughout the antiferromagnet Co1-yO on the exchange bias (EB) in epitaxially grown Co1-yO/Co bilayers. These defects are either substitutional or structural (twin boundaries and surface morphology), which both lead to an increase of the EB field. We find a dominance of twin boundaries over surface morphology (roughness) in enhancing EB that is consistent with the domain state model for exchange bias. In contrast, the crystal orientation of the Co1-yO layer does not show a significant effect on the EB in this system. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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