Magnetic domain states in nano-sized Co nuclei electrodeposited onto monocrystalline silicon

In the present work, nano-sized magnetic nuclei of Co have been electrodeposited onto p-Si (111). The deposition follows a mechanism of progressive nucleation and growth controlled by diffusion. MFM studies showed that the transition between magnetic domain states is strongly dependent on the size a...

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Bibliographic Details
Published in:Materials letters 2004-11, Vol.58 (27), p.3518-3522
Main Authors: Moina, C.A., de Oliveira-Versic, L., Vazdar, M.
Format: Article
Language:English
Subjects:
AFM/MFM
Co electrodeposition
Electrochemical nucleation
Magnetic materials
Nanomaterials
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Summary:In the present work, nano-sized magnetic nuclei of Co have been electrodeposited onto p-Si (111). The deposition follows a mechanism of progressive nucleation and growth controlled by diffusion. MFM studies showed that the transition between magnetic domain states is strongly dependent on the size and shape of the nuclei. A critical height h 0 is defined below which the nuclei presented always a single-domain configuration. The limiting lower boundary for the single-domain state calculated from the theory is quantitatively coincident with the experimental results.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2004.06.041