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

Peter Metaxas, Manu Sushruth, Ryan Begley, J. Ding, Rob Woodward, Ivan Maksymov, M. Albert, W. Wang, H. Fangohr, A.O. Adeyeye, Mikhail Kostylev

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    Abstract

    © 2015 AIP Publishing LLC. We experimentally demonstrate the use of the magnetic-field-dependence of highly spatially confined, GHz-frequency ferromagnetic resonances for the detection of magnetic nanoparticles using an anti-dot-based magnonic crystal. The stray magnetic fields of nanoparticles within the anti-dots modify nano-confined ferromagnetic resonances in the surrounding periodically nanopatterned 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 mode localization, consistent with micromagnetic simulation results. This is an encouraging result for the development of frequency-based nanoparticle detectors for nano-scale biosensing.
    Original languageEnglish
    Pages (from-to)232406-1 - 232406-5
    JournalApplied Physics Letters
    Volume106
    Issue number23
    DOIs
    Publication statusPublished - 11 Jun 2015

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    Metaxas, Peter ; Sushruth, Manu ; Begley, Ryan ; Ding, J. ; Woodward, Rob ; Maksymov, Ivan ; Albert, M. ; Wang, W. ; Fangohr, H. ; Adeyeye, A.O. ; Kostylev, Mikhail. / Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal. In: Applied Physics Letters. 2015 ; Vol. 106, No. 23. pp. 232406-1 - 232406-5.
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    abstract = "{\circledC} 2015 AIP Publishing LLC. We experimentally demonstrate the use of the magnetic-field-dependence of highly spatially confined, GHz-frequency ferromagnetic resonances for the detection of magnetic nanoparticles using an anti-dot-based magnonic crystal. The stray magnetic fields of nanoparticles within the anti-dots modify nano-confined ferromagnetic resonances in the surrounding periodically nanopatterned 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 mode localization, consistent with micromagnetic simulation results. This is an encouraging result for the development of frequency-based nanoparticle detectors for nano-scale biosensing.",
    author = "Peter Metaxas and Manu Sushruth and Ryan Begley and J. Ding and Rob Woodward and Ivan Maksymov and M. Albert and W. Wang and H. Fangohr and A.O. Adeyeye and Mikhail Kostylev",
    year = "2015",
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    doi = "10.1063/1.4922392",
    language = "English",
    volume = "106",
    pages = "232406--1 -- 232406--5",
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    Metaxas, P, Sushruth, M, Begley, R, Ding, J, Woodward, R, Maksymov, I, Albert, M, Wang, W, Fangohr, H, Adeyeye, AO & Kostylev, M 2015, 'Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal' Applied Physics Letters, vol. 106, no. 23, pp. 232406-1 - 232406-5. https://doi.org/10.1063/1.4922392

    Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal. / Metaxas, Peter; Sushruth, Manu; Begley, Ryan; Ding, J.; Woodward, Rob; Maksymov, Ivan; Albert, M.; Wang, W.; Fangohr, H.; Adeyeye, A.O.; Kostylev, Mikhail.

    In: Applied Physics Letters, Vol. 106, No. 23, 11.06.2015, p. 232406-1 - 232406-5.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal

    AU - Metaxas, Peter

    AU - Sushruth, Manu

    AU - Begley, Ryan

    AU - Ding, J.

    AU - Woodward, Rob

    AU - Maksymov, Ivan

    AU - Albert, M.

    AU - Wang, W.

    AU - Fangohr, H.

    AU - Adeyeye, A.O.

    AU - Kostylev, Mikhail

    PY - 2015/6/11

    Y1 - 2015/6/11

    N2 - © 2015 AIP Publishing LLC. We experimentally demonstrate the use of the magnetic-field-dependence of highly spatially confined, GHz-frequency ferromagnetic resonances for the detection of magnetic nanoparticles using an anti-dot-based magnonic crystal. The stray magnetic fields of nanoparticles within the anti-dots modify nano-confined ferromagnetic resonances in the surrounding periodically nanopatterned 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 mode localization, consistent with micromagnetic simulation results. This is an encouraging result for the development of frequency-based nanoparticle detectors for nano-scale biosensing.

    AB - © 2015 AIP Publishing LLC. We experimentally demonstrate the use of the magnetic-field-dependence of highly spatially confined, GHz-frequency ferromagnetic resonances for the detection of magnetic nanoparticles using an anti-dot-based magnonic crystal. The stray magnetic fields of nanoparticles within the anti-dots modify nano-confined ferromagnetic resonances in the surrounding periodically nanopatterned 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 mode localization, consistent with micromagnetic simulation results. This is an encouraging result for the development of frequency-based nanoparticle detectors for nano-scale biosensing.

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