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Article Dans Une Revue European Physical Journal: Applied Physics Année : 2007

Multilevel magnetic nanodot arrays with out of plane anisotropy: the role of intra-dot magnetostatic coupling

Résumé

Intra-dot inter-layer magnetostatic coupling have been investigated in trilayers which consist of two [Co/Pt] multilayers with out-of-plane anisotropy and different coercivities separated by a thick Pt layer. For single domain nanodots, the strong intra-dot inter-layer magnetostatic interactions manifest as a shift of the soft layer hysteresis loop. The amplitude of this shift decreases when the size of the dots is increased and/or when the temperature is increased. Satisfactory agreement is found between calculations and experimental results. PACS. 75 Magnetic properties and materials-75.70.-i Magnetic properties of thin films, surfaces, and interfaces-75.60.-d Domain effects, magnetization curves, and hysteresis-75.60.Ch Domain walls and domain structure-75.75.+a Magnetic properties of nanostructures
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hal-01683826 , version 1 (25-05-2019)

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Vincent Baltz, A. Bollero, B. Rodmacq, B. Dieny, J. P. Jamet, et al.. Multilevel magnetic nanodot arrays with out of plane anisotropy: the role of intra-dot magnetostatic coupling. European Physical Journal: Applied Physics, 2007, 39, pp.33. ⟨10.1051/epjap:2007107⟩. ⟨hal-01683826⟩
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