The University of Southampton
University of Southampton Institutional Repository

Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal

Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal
Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal
We demonstrate the use of the magnetic-field-dependence of highly spatially confined, GHz-frequency ferromagnetic resonances in a ferromagnetic nanostructure for the detection of adsorbed magnetic nanoparticles. This is achieved in a large area magnonic crystal consisting of a thin ferromagnetic film containing a periodic array of closely spaced, nano-scale anti-dots. Stray fields from nanoparticles within the anti-dots modify resonant dynamic magnetisation modes in the surrounding magnonic crystal, generating easily measurable resonance peak shifts. The shifts are comparable to the resonance linewidths for high anti-dot filling fractions with their signs and magnitudes dependent upon the modes' localisations (in agreement with micromagnetic simulation results). This is a highly encouraging result for the development of frequency-based nanoparticle detectors for high speed nano-scale biosensing.
0003-6951
1-6
Metaxas, Peter J.
422e8ca8-6e4a-48cb-b7eb-1e11a73361e3
Sushruth, Manu
cfd81b5b-0dc2-41d9-bd43-e46ea58fab64
Begley, Ryan A.
ae1bd918-3285-4145-a906-e73417e2f30c
Ding, Junjia
7ee7fdc0-17c1-4f5d-b279-11b05f9600c6
Woodward, Robert C.
fe722368-49b1-4f75-9c00-2a9128e0c0fd
Maksymov, Ivan S.
f970be32-bd24-462e-9cc9-70c90db7bfea
Albert, Maximilian
a8049610-1e98-4cfb-b59a-177645a42b47
Wang, Weiwei
42981e5f-b7ee-44f7-a64d-d47ab0cacbce
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Adeyeye, Adekunle O.
7afb3a23-5426-419d-8204-791be13b1578
Kostylev, Mikhail
987113b2-474b-4b97-a51b-51e81ed79e83
Metaxas, Peter J.
422e8ca8-6e4a-48cb-b7eb-1e11a73361e3
Sushruth, Manu
cfd81b5b-0dc2-41d9-bd43-e46ea58fab64
Begley, Ryan A.
ae1bd918-3285-4145-a906-e73417e2f30c
Ding, Junjia
7ee7fdc0-17c1-4f5d-b279-11b05f9600c6
Woodward, Robert C.
fe722368-49b1-4f75-9c00-2a9128e0c0fd
Maksymov, Ivan S.
f970be32-bd24-462e-9cc9-70c90db7bfea
Albert, Maximilian
a8049610-1e98-4cfb-b59a-177645a42b47
Wang, Weiwei
42981e5f-b7ee-44f7-a64d-d47ab0cacbce
Fangohr, Hans
9b7cfab9-d5dc-45dc-947c-2eba5c81a160
Adeyeye, Adekunle O.
7afb3a23-5426-419d-8204-791be13b1578
Kostylev, Mikhail
987113b2-474b-4b97-a51b-51e81ed79e83

Metaxas, Peter J., Sushruth, Manu, Begley, Ryan A., Ding, Junjia, Woodward, Robert C., Maksymov, Ivan S., Albert, Maximilian, Wang, Weiwei, Fangohr, Hans, Adeyeye, Adekunle O. and Kostylev, Mikhail (2015) Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal. Applied Physics Letters, 106 (23), 1-6. (doi:10.1063/1.4922392).

Record type: Article

Abstract

We demonstrate the use of the magnetic-field-dependence of highly spatially confined, GHz-frequency ferromagnetic resonances in a ferromagnetic nanostructure for the detection of adsorbed magnetic nanoparticles. This is achieved in a large area magnonic crystal consisting of a thin ferromagnetic film containing a periodic array of closely spaced, nano-scale anti-dots. Stray fields from nanoparticles within the anti-dots modify resonant dynamic magnetisation modes in the surrounding magnonic crystal, generating easily measurable resonance peak shifts. The shifts are comparable to the resonance linewidths for high anti-dot filling fractions with their signs and magnitudes dependent upon the modes' localisations (in agreement with micromagnetic simulation results). This is a highly encouraging result for the development of frequency-based nanoparticle detectors for high speed nano-scale biosensing.

Text
1501.01171v1.pdf - Accepted Manuscript
Download (3MB)

More information

Submitted date: 6 January 2015
Accepted/In Press date: 1 June 2015
Published date: 11 June 2015
Organisations: Computational Engineering & Design Group

Identifiers

Local EPrints ID: 383026
URI: https://eprints.soton.ac.uk/id/eprint/383026
ISSN: 0003-6951
PURE UUID: 2d69a0b8-b8b6-4f04-9876-dc8727fa8800

Catalogue record

Date deposited: 04 Nov 2015 14:53
Last modified: 29 Nov 2018 17:31

Export record

Altmetrics

Contributors

Author: Peter J. Metaxas
Author: Manu Sushruth
Author: Ryan A. Begley
Author: Junjia Ding
Author: Robert C. Woodward
Author: Ivan S. Maksymov
Author: Maximilian Albert
Author: Weiwei Wang
Author: Hans Fangohr
Author: Adekunle O. Adeyeye
Author: Mikhail Kostylev

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×