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High-yield fabrication of perpendicularly magnetised synthetic antiferromagnetic nanodiscs
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Peer-reviewed
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Abstract
Synthetic antiferromagnetic (SAF) particles with perpendicular anisotropy display a number of desirable characteristics for applications in biological and other fluid environments. We present an efficient and effective method for the patterning of ultrathin RKKY coupled, perpendicularly magnetised SAFs using a combination of nanosphere lithography and ion milling. A Ge sacrificial layer is utilised, which provides a clean and simple lift-off process, as well as maintaining the key magnetic properties that are beneficial to target applications. We demonstrate that the method is capable of producing a particularly high yield of well-defined, thin film based nanoparticles.
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Keywords
nanodiscs, synthetic antiferromagnets, perpendicular anisotropy, sacrificial layers, nanofabrication
Journal Title
Nano Research
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Journal ISSN
1998-0000
1998-0000
1998-0000
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Publisher
Springer Verlag
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All rights reserved
Sponsorship
European Research Council (779822)
European Research Council (No.779822)