Enhancement of magnetic coercivity in Fe/Mn and Co/Mn bilayers |
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| Authors: | J. Ben Youssef S. Pogossian D.T. Dekadjevi |
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| Affiliation: | a Laboratoire de Magnetisme de Bretagne, Department of Physics, CNRS-UBO, 29285 Brest Cedex 3, France
b Department of Physics, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg 2006, South Africa |
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| Abstract: | The dependence of the coercive field and saturated magnetization on the interfacial width is studied to understand the driving mechanism of the coercive enhancement in Fe/Mn and Co/Mn bilayers. We establish a controlled annealing procedure to reveal the origin of this enhancement. Using a model, we reveal that the full interfacial width plays a keyrole, and that no Mn based finite size effects drive the mechanism. We show that this mechanism is common to both type of bilayers. |
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| Keywords: | Manganese Magnetization reversal Thin films coercive enhancement |
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