Permalloy-based magnetoplasmonic crystals for sensor applications

Belyaev, Victor; Murzin, Dmitry; Perova, N. N.; Grunin, Andrey; Fedyanin, Andrey A.; Rodionova, Valeria

doi:10.1016/j.jmmm.2019.03.052

Cited by 24 publications

(21 citation statements)

References 20 publications

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“…36,37) In our previous work, devoted to the application of the considered MPlCs as magnetic field sensors, it was shown that the required external modulation field and signal-to-noise ratio depend on the magnetic properties of the MPlCs. 26) In particular, the required external modulation field is related to the coercive force, H C , and a measurable field region is There was an ultra-soft repeatable magnetic phase with an H C value of 1.5 Oe. This magnetic phase in the future could be used to measure external magnetic fields in very low modulating fields with magnitudes of less than 1 Oe.…”

Section: Q3mentioning

confidence: 99%

“…It has been proved that the magneto-optical response of MPlC structures strongly correlates with their magnetic properties, which in turn allows the tuning of the magnetic field sensor's parameters. 26,28,29) This fact opens up a way to improve the sensitivity of MPlC-based magnetic field sensors by noise reduction and amplification of magneto-optical response by varying the MPlC's parameters such as the ferromagnetic layer thickness and the diffraction grating period and height.…”

Section: Introductionmentioning

confidence: 99%

“…determined by the slope of the signal-to-noise ratio function that has a phenomenological connection with the magnetisation curves. More information can be found in Ref 26…”

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confidence: 99%

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

Murzin¹,

Belyaev²,

Groß³

et al. 2020

Jpn. J. Appl. Phys.

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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 Q1 polaritons. The field dependence of surface plasmon polaritons' enhanced magneto-optical response strongly correlates with the 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 Ni 80 Fe 20 (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 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.

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Section: Q3mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Murzin¹,

Belyaev²,

Groß³

et al. 2020

Jpn. J. Appl. Phys.

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“…Recent developments of the fluxgate magnetometer have been directed towards miniaturization based on planar thin-film structures with a minimal magnetic noise level is about 0.1 nT/√Hz [71]. Also, Knyazev et al [72] published a novel concept of the fluxgate sensor with magneto-optical reading based on a magnetoplasmonic crystal [73]. The sensing area was around 1 mm 2 , and the detection limit was 2 nT/√Hz.…”

mentioning

confidence: 99%

“…Hz [71]. Also, Knyazev et al [72] published a novel concept of the fluxgate sensor with magneto-optical reading based on a magnetoplasmonic crystal [73]. The sensing area was around 1 mm 2 , and the detection limit was 2 nT/…”

mentioning

confidence: 99%

Ultrasensitive Magnetic Field Sensors for Biomedical Applications

Murzin

Mapps

Levada

et al. 2020

Sensors

169

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The development of magnetic field sensors for biomedical applications primarily focuses on equivalent magnetic noise reduction or overall design improvement in order to make them smaller and cheaper while keeping the required values of a limit of detection. One of the cutting-edge topics today is the use of magnetic field sensors for applications such as magnetocardiography, magnetotomography, magnetomyography, magnetoneurography, or their application in point-of-care devices. This introductory review focuses on modern magnetic field sensors suitable for biomedicine applications from a physical point of view and provides an overview of recent studies in this field. Types of magnetic field sensors include direct current superconducting quantum interference devices, search coil, fluxgate, magnetoelectric, giant magneto-impedance, anisotropic/giant/tunneling magnetoresistance, optically pumped, cavity optomechanical, Hall effect, magnetoelastic, spin wave interferometry, and those based on the behavior of nitrogen-vacancy centers in the atomic lattice of diamond.

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