Results 11 to 20 of about 1,835 (188)
Tuning Metamaterials by using Amorphous Magnetic Microwires [PDF]
Scientific Reports, 2017 AbstractIn this work, we demonstrate theoretically and experimentally the possibility of tuning the electromagnetic properties of metamaterials with magnetic fields by incorporating amorphous magnetic microwires. The large permeability of these wires at microwave frequencies allows tuning the resonance of the metamaterial by using magnetic fields of ...
Lopez-Dominguez, V. +3 more
core +6 more sources
Spiral Annealing of Magnetic Microwires [PDF]
SensorsA preprocessing technique named “spiral annealing” was applied for the first time to magnetic microwires. In this process, the sample was arranged in a flat spiral shape during annealing, and subsequent measurements were conducted on the unbent sample with the induced stress distribution along and transverse to the sample.
Chizhik, Alexander +5 more
core +6 more sources
Monitoring the Velocity of Domain Wall Motion in Magnetic Microwires [PDF]
SensorsAn approach was proposed to control the displacement of domain walls in magnetic microwires, which are employed in magnetic sensors. The velocity of the domain wall can be altered by the interaction of two magnetic microwires of distinct types.
Alexander Chizhik +4 more
doaj +3 more sources
Determination of Magnetic Structures in Magnetic Microwires with Longitudinally Distributed Magnetic Anisotropy [PDF]
Sensors, 2023 We studied the magnetic properties of a glass-covered amorphous microwire that was stress-annealed at temperatures distributed along the microwire length. The Sixtus-Tonks, Kerr effect microscopy and magnetic impedance techniques have been applied. There was a transformation of the magnetic structure across the zones subjected to annealing at different
Alexander Chizhik +6 more
openaire +6 more sources
Dipolar magnetic interactions among magnetic microwires
Journal of Magnetism and Magnetic Materials, 2002 Abstract This paper presents a brief review of experiments and simulations on dipole–dipole interacting magnetic microwires that form a linear chain. In particular, recent studies on (a) amorphous Fe 77.5 Si 7.5 B 15 and (b) granular Cu 45 Ni 25 Co 29 Mn 1 microwires are discussed. Hysteresis loops were performed at room temperature for an array of
Knobel, M +4 more
openaire +6 more sources
Applied Sciences, 2020 Stress-annealing enabled a considerable improvement in the GMI effect in both Fe- and Co-rich glass-coated microwires. Additionally, a remarkable magnetic softening can be achieved in stress-annealed Fe-rich microwires.
Paula Corte-León +6 more
doaj +2 more sources
Magnetic Properties and Applications of Glass-coated Ferromagnetic Microwires
Advanced Electromagnetics, 2023 A remarkable magnetic softness and giant magnetoimpedance (GMI) effect at GHz frequency range havebeen observed in glass-coated microwires subjected to appropriate postprocessing. Co-based microwires present higher GMI effect.
V. Zhukova +7 more
doaj +5 more sources
Metals, 2023 A scanning magnetometer based on a magnetoimpedance sensor with a 1 mm spatial resolution and 10 nT sensitivity was used to study stray magnetic fields of Fe74B13Si11C2 amorphous ferromagnetic microwires.
Georgy Danilov +4 more
doaj +2 more sources
Optimization of Magnetoimpedance Effect and Magnetic Properties of Fe-Rich Glass-Coated Microwires by Annealing [PDF]
Sensors, 2023 As-prepared Fe-rich microwires with perfectly rectangular hysteresis loops present magnetization reversal through fast domain wall propagation, while the giant magnetoimpedance (GMI) effect in Fe-rich microwires is rather low.
Alvaro González +7 more
doaj +2 more sources
Amorphous microwires with enhanced magnetic softness and GMI characteristics
EPJ Web of Conferences, 2012 In this paper we present results on correlation of GMI effect and soft magnetic behavior in Co-rich microwires with low magnetostriction constant. Correlation between magnetoelastic anisotropy and magnetic field dependences of diagonal and off-diagonal ...
Zhukova V., Zhukov A., Ipatov M.
doaj +2 more sources