Domain state model for exchange bias: thickness dependence of diluted antiferromagnetic Co1−yO on exchange bias in Co/CoO |
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| Authors: | B. Beschoten, J. Keller, P. Milt nyi,G. Gü ntherodt |
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| Affiliation: | II. Physikalisches Institut, RWTH Aachen, Templergraben 55, D-52056 Aachen, Germany |
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| Abstract: | The thickness dependence of different diluted antiferromagnetic Co1−yO layers on the exchange bias (EB) in ferro/antiferromagnetic Co/Co1−yO bilayers is investigated. For undiluted samples the EB decreases above a layer thickness of 5 nm whereas it increases and saturates for AFM layers thicker than 20 nm for diluted samples. These findings support the domain state model for EB. |
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| Keywords: | Anisotropy – unidirectional Domain structure Exchange biasing Magnetization – concentration dependent |
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