Results 171 to 180 of about 1,620 (204)

Magnetoimpedance effect in zero magnetostriction nanocrystalline Fe73.5Cu1Nb3Si16.5B6 ribbons

Journal of Magnetism and Magnetic Materials, 1998
Abstract The field and frequency dependences of the impedance in Fe 73.5 Cu 1 Nb 3 Si 16.5 B 6 ribbons are reported here. The samples were annealed for 1 h at temperatures between 400 and 630°C leading to devitrification of the initial state into multiphase systems in order to study the correlation between the magnetoimpedance effect and the ...
M Tejedor, B Hernando, M.L Sánchez, V.M Prida, J.M Garcia-Beneytez, M Vázquez, G Herzer   +6 more
openaire   +1 more source

Giant magnetoimpedance effects in the amorphous ribbon Fe8.0Co62.4Mn0.5Mo0.6Ni0.5Si14.7B13.3

Materials Science and Engineering: B, 1999
Abstract In the present work, the experimental results indicate that both resistive and inductive components of the impedance for the ribbon Fe8.0Co62.4Mn0.5Mo0.6Ni0.5Si14.7B13.3 are influenced strongly by the frequency of the ac drive current and dc magnetic fields in the longitudinal and transversal direction, respectively.
Jifan Hu, Shaoxiong Zhou, Lihua Zhang, Hongxia Wang   +3 more
openaire   +1 more source

Improvement of stepped magnetoimpedance properties by controlling demagnetizing effect

2015 IEEE Magnetics Conference (INTERMAG), 2015
Magnetoimpedance (MI) element is used for compasses in mobile phones [1], and its application expands to various industrial fields such as biomedical field and nondestructive testing because of its higher sensitivity [2]. On the other hand, MI element with a stepped impedance properties was obtained from the rectangular amorphous film with a uniaxial ...
H. Kikuchi, S. Kamata, S. Oe, T. Nakai, S. Hashi, K. Ishiyama   +5 more
openaire   +1 more source

Giant magnetoimpedance effect in nanocrystalline Fe74SixB22−xCu1Nb3 ribbons

Journal of Applied Physics, 1997
We investigated the magnetoimpedance (MI) effect for the soft magnetic nanocrystalline Fe74SixB22−xCu1Nb3 (x=4–18) alloys, and also the relationship between the magnetic properties and the MI effect. The annealing temperature dependence of the MI ratio corresponds to that of the permeability of longitudinal direction of the samples.
Y. Ueda, S. Ikeda, W. Takakura
openaire   +1 more source

Domain wall motion influence on the magnetoimpedance effect

Journal of Magnetism and Magnetic Materials, 1999
The influence of domain wall movements in the giant magnetoimpedance measured in low magnetostrictive alloys has been studied. Samples were field annealed under a static field that was applied making an angle θ, varied from 90° to 0°, with the longitudinal ribbon axis. Measurements were performed up to 10 MHz.
J. Gutiérrez, D. Atkinson, P.T. Squire, J.M. Barandiarán   +3 more
openaire   +1 more source

Giant magnetoimpedance effect in Ag/NiFe plated wire

Materials Science and Engineering: B, 2004
Abstract In the present work, the giant magnetoimpedance (GMI) effect of Ag/NiFe plated wire was investigated at room temperature. The value of the magnetoimpedance (Z(H)−Z(0))/Z(0) under H=90 Oe can reach about 40% at 50 kHz. With the increase of the field the magnetoimpedance (Z(H)−Z(0))/Z(0) reaches a peak. The peak-field HP increases firstly with
Jifan Hu, Hongwei Qin, Ling Zhang, Juan Chen   +3 more
openaire   +1 more source

Magnetoimpedance effect in structured multilayered amorphous thin films

Journal of Physics D: Applied Physics, 2008
In this work, we report magnetoimpedance (MI) results for frequencies of up to 1.8 GHz in a series of as deposited nano-structured [F/Cu/F] and [F/i/Cu/i/F] films where F is a Fe-rich alloy/Cu multilayer and i is a SiO2 insulating layer. A high MI ratio (205%) was obtained at 180 MHz for the [F/i/Cu/i/F] structure.
M A Corrêa, F Bohn, A D C Viegas, A M H de Andrade, L F Schelp, R L Sommer   +5 more
openaire   +1 more source

Magnetoimpedance Effect in Nanocrystalline Fe86Zr7B6Cu1 Melt-Spun Ribbons

physica status solidi (a), 2002
The giant magnetoimpedance effect (GMI) in amorphous and nanocrystalline Fe 86 Zr 7 B 6 Cu 1 ribbons has been studied in a wide frequency interval (500 kHz-6 GHz) as a function of microstructure. Selected ribbons have been submitted to conventional and current annealing to induce the amorphous-to-nanocrystalline transformation.
Coisson, M., Tiberto, P., Vinai, F.
openaire   +2 more sources

Off-diagonal magnetoimpedance effect in Fe80B20 amorphous ribbons

Journal of Non-Crystalline Solids, 2008
Abstract Both the axial and off-diagonal magnetoimpedance (MI) effect in Fe80B20 amorphous ribbons were measured trough the voltage across the sample and using a pick-up coil wound around it, respectively. Two different ribbons were studied; one in the as-quenched state and other was produced under a transverse magnetic field of 0.07 T in the ribbon ...
M.L. Sánchez, T. Sánchez, I. Ribot, M.J. Pérez, J.D. Santos, J.L. Sánchez-Llamazares, V.M. Prida, P. Alvarez, B. Hernando, Ll. Escoda, J.J. Suñol   +10 more
openaire   +1 more source

Laboratory work on the study of magnetoimpedance effect

2016 13th International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2016
The possibility of an experimental study of the magnetoimpedance effect (MI) by students of higher school is considered. This study can be performed within the framework of laboratory works on such disciplines as «Physics of magnetic phenomena», «Electrodynamics», «Electrical engineering» and the like.
Dmitry A. Bukreev, Alexey A. Moiseev, Michael S. Derevyanko   +2 more
openaire   +1 more source