Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5366627 | Applied Surface Science | 2006 | 4 Pages |
Abstract
The exchange bias field HE was much higher for Ta/Co/Co3O4/Ta than Ta/Co/Co3O4, fabricated in a magnetron sputtering system under the same experimental conditions. The XPS analysis showed that Ta atoms of cap layer for Ta/Co/Co3O4/Ta diffused into Co3O4 layer and reduced Co3O4, and introduced some nonmagnetic defects into the AFM layer. The dilution of the AFM layer led to the formation of volume domains. We believed that the higher HE for the multilayers Ta/Co/Co3O4/Ta was primarily attributed to the formation of volume domain due to some nonmagnetic defects in AFM layer.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Yaxin Wang, Wei Tian, Jie Xiong, Yixing Wang, Liang Sun, Qi Li, Biao You, An Hu, Hongru Zhai, Mu Lu,