Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 232406-1 - 232406-5 |
| Journal | Applied Physics Letters |
| Volume | 106 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 11 Jun 2015 |
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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 journal › Article
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.
U2 - 10.1063/1.4922392
DO - 10.1063/1.4922392
M3 - Article
VL - 106
SP - 232406-1 - 232406-5
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 23
ER -