Almeida, T. P. , McGrouther, D. , Kovács, A., Dunin-Borkowski, R. E. and McVitie, S. (2020) Effect of annealing on the magnetic states of FEBID-grown cobalt nanopatterns examined by off-axis electron holography. Journal of Microscopy, 279(3), pp. 217-221. (doi: 10.1111/jmi.12869) (PMID:31985824)
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Abstract
The growth of cobalt nanopatterns (NPs) using focused electron‐beam induced deposition (FEBID) for localised magnetic studies is presented. The initial FEBID products are shown to be polycrystalline and form hetero‐structured core‐shell NPs through surface oxidation. Off‐axis electron holography is performed to reconstruct their morphology, thickness profile and image their individual magnetic vortex domain states. In situ annealing to 400°C promoted migration of the Co‐overspray to grow the Co NPs and improved their crystallinity through coarsening, as well as induced diffusion of embedded carbon out of their surface. It is found that the change in their morphology and chemical instability under heating restricts their suitability for examining thermally induced magnetic variations.
Item Type: | Articles |
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Additional Information: | The authors thank the University of Glasgow (200540-01) and Carnegie Trust (RIG007390) for funding. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | McGrouther, Dr Damien and McVitie, Professor Stephen and Almeida, Dr Trevor |
Authors: | Almeida, T. P., McGrouther, D., Kovács, A., Dunin-Borkowski, R. E., and McVitie, S. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Journal of Microscopy |
Publisher: | Wiley |
ISSN: | 0022-2720 |
ISSN (Online): | 1365-2818 |
Published Online: | 27 January 2020 |
Copyright Holders: | Copyright © 2020 Royal Microscopical Society |
First Published: | First published in Journal of Microscopy 279(3): 217-221 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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