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{Tuning the magnetic properties of permalloy-based magnetoplasmonic crystals for sensor applications}

2020

Article

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Miniature magnetic sensors based on magnetoplasmonic crystals (MPlCs) exhibit high sensitivity and high spatial resolution, which can be obtained by the excitation of surface plasmon polaritons. A field dependence of surface plasmon polaritons' enhanced magneto-optical response strongly correlates with magnetic properties of MPlCs that can be tuned by changing spatial parameters, such as the period and height of diffraction gratings and thicknesses of functional layers. This work compares the magnetic properties of MPlCs based on Ni80Fe20 (permalloy) obtained from local (longitudinal magneto-optical Kerr effect) and bulk (vibrating-sample magnetometry) measurements and demonstrates an ability to control sensors' performance through changing the magnetic properties of the MPlCs. The influence of the substrate's geometry (planar or sinusoidal and trapezoidal diffraction grating profiles) and the thickness of the surface layer is examined.

Author(s): Murzin, D. V. and Belyaev, V. K. and Groß, F. and Gräfe, J. and Rivas, M. and Rodionova, V. V.
Journal: {Japanese Journal of Applied Physics}
Volume: 59
Number (issue): SE
Year: 2020
Publisher: IOP Publishing Ltd

Department(s): Modern Magnetic Systems
Research Project(s): First-Order Reversal Curves
Bibtex Type: Article (article)

Address: Bristol, England
DOI: 10.7567/1347-4065/ab5e6a
Language: eng

BibTex

@article{escidoc:3187835,
  title = {{Tuning the magnetic properties of permalloy-based magnetoplasmonic crystals for sensor applications}},
  author = {Murzin, D. V. and Belyaev, V. K. and Gro{\ss}, F. and Gr\"afe, J. and Rivas, M. and Rodionova, V. V.},
  journal = {{Japanese Journal of Applied Physics}},
  volume = {59},
  number = {SE},
  publisher = {IOP Publishing Ltd},
  address = {Bristol, England},
  year = {2020}
}