Results 21 to 30 of about 1,539 (139)

Effect of anisotropy distribution on local nucleation field in bistable ferromagntic microwires [PDF]

open access: yes, 2019
Critical parameters defining the local nucleation field in amorphous ferromagnetic microwires with positive magnetostriction are obtained analytically through scaling procedures.
Kwiatkowski, Grzegorz
core   +2 more sources

Consequences of aging on ferromagnetic amorphous Fe75Si10B15 microwires for advanced inductive applications

open access: yesAIP Advances, 2019
Amorphous ferromagnetic microwires fabricated by water-quenching have been assessed to show favorable properties for next-generation high-frequency electric machines as compared to those of conventional amorphous magnetic alloys in sheet or ribbon form ...
X. Zhang   +3 more
doaj   +1 more source

Scattering of Microwaves by a Passive Array Antenna Based on Amorphous Ferromagnetic Microwires for Wireless Sensors with Biomedical Applications

open access: yesSensors, 2019
Co-based amorphous microwires presenting the giant magnetoimpedance effect are proposed as sensing elements for high sensitivity biosensors. In this work we report an experimental method for contactless detection of stress, temperature, and liquid ...
Alberto Moya   +4 more
doaj   +1 more source

Enhanced high-frequency magneto-impedance response of melt-extracted Co69.25Fe4.25Si13B13.5 microwires subject to Joule annealing

open access: yesJournal of Science: Advanced Materials and Devices, 2016
We report an enhancement of low-field, high-frequency magneto-impedance (MI) response and circumferential domain structures of melt-extracted amorphous Co69.25Fe4.25Si13B13.5 microwires by dc Joule annealing. The current amplitudes of 5 mA, 10 mA, and 20 
O. Thiabgoh   +9 more
doaj   +1 more source

Low temperature magnetic behaviour of glass-covered magnetic microwires with gradient nanocrystalline microstructure [PDF]

open access: yes, 2014
Slow nanocrystallization driving dynamics can be affected by the combination of two factors: sample residual stresses and sample geometry. This effect is evidenced at the initial stages of nanocrystallization of amorphous CoFeSiBCuNb magnetic microwires.
A. Hernando   +4 more
core   +2 more sources

Domain wall mobility engineering by a perpendicular magnetic field in microwires with a gradient of perpendicular anisotropy

open access: yesAIP Advances, 2021
Fast domain wall propagation is a typical feature of amorphous glass-coated microwires with positive magnetostriction. The high domain wall velocity can be effectively tailored either by sample postprocessing or temperature.
L. Fecova, K. Richter, R. Varga
doaj   +1 more source

An Indirect Method of Micromagnetic Structure Estimation in Microwires

open access: yesNanomaterials, 2021
The tunable magnetic properties of amorphous ferromagnetic glass-coated microwires make them suitable for a wide range of applications. Accurate knowledge of the micromagnetic structure is highly desirable since it affects almost all magnetic properties.
Iuliia Alekhina   +6 more
doaj   +1 more source

Bias free magnetomechanical coupling on magnetic microwires for sensing applications [PDF]

open access: yes, 2013
In the present paper, we report a systematic study of the magnetoelastic resonance of amorphous magnetic microwires of composition Fe73Si11B13Nb3. The study was performed for samples annealed at different temperatures.
Hernando Grande, Antonio   +2 more
core   +2 more sources

Local magnetization profile and geometry magnetization effects in microwires as determined by magneto-optical Kerr effect [PDF]

open access: yes, 2013
The local magnetization profile along the length in magnetostrictive Fe-based magnetic microwires has been determined by magneto-optical Kerr effect. The study has been performed in microwires with different geometrical dimensions (i.e., diameter and ...
Infante, Germán   +3 more
core   +2 more sources

A domain wall creation paradigm: Realization for amorphous Fe-based microwires

open access: yesAIP Advances, 2021
The creation of a domain wall pair in the magnetic core of amorphous glass-coated bistable microwires with circular cross-section is studied. Energy balance is formulated in the spirit of particle decay, equalizing magnetic field work and energy of two ...
Sergey Leble, Valeria Rodionova
doaj   +1 more source

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