Results 151 to 160 of about 1,473 (211)

Non-linear giant magnetoimpedance

Journal of Magnetism and Magnetic Materials, 2002
Abstract Very high and sensitive magnetoimpedance effect has been studied in FeCoNi magnetic tubes electroplated onto CuBe wire for the frequency of 1 MHz order. Strong non-linear effects have been observed. The high harmonics generation was investigated.
G.V. Kurlyandskaya, E. Kisker, H. Yakabchuk, N.G. Bebenin   +3 more
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Dipolar-biased giant magnetoimpedance

Journal of Magnetism and Magnetic Materials, 2005
Abstract The effect of the dipolar field on the magnetoimpedance in Fe- and Co-based wires is presented. In the experiments a Co-based wire was used as a probe to measure the giant magnetoimpedance (GMI), while a Fe-based wire was employed to generate the dipolar field.
J.P. Sinnecker, A.E.P. de Araujo, R. Piccin, M. Knobel, M. Vázquez   +4 more
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Giant magnetoimpedance in silicon steels

Journal of Magnetism and Magnetic Materials, 2004
Abstract Giant magnetoimpedance (GMI) has been measured in pieces of silicon steel (4.5% Si) as functions of axial static magnetic field, sample width, frequency and magnitude of the AC driving current. The samples, 0.5×35 mm with widths ranging from 0.122 to 1.064 mm, were cut from sheets of commercial transformer cores. The impedance decreased with
P. Jantaratana, C. Sirisathitkul
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Giant magnetoimpedance in a MnZn ferrite

Journal of Magnetism and Magnetic Materials, 2006
Abstract Giant magnetoimpedance (GMI) effect has been observed in a MnZn ferrite at room temperature. The magnetoimpedance Δ Z / Z 0 reaches −61.2% at a frequency f = 4 MHz under a field H = 3 kOe . The GMI in MnZn ferrite is connected not only with the field induced permeability variation, but also ...
Jifan Hu, Hongwei Qin, Guanquan Qi, Minhua Jiang   +3 more
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Giant Magnetoimpedance in CoP Electrodeposited Films

Key Engineering Materials, 2014
In the last few years there has been increasing interest in CoP electrodeposited alloys due to their excellent properties as soft magnetic materials (low coercivity and high permeability) in addition to the giant magnetoimpedance that they exhibit. More recently magneto-impedance (MI) effect has also been reported on thin films obtained by sputtering ...
Carlos Morón, Enrique Tremps, Alfonso Garcia, Jose Maria Fuster, Jose Andrés Somolinos   +4 more
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Giant magnetoimpedance in CoP electrodeposited microtubes

Journal of Materials Research, 2000
Co90P10 amorphous microtubes with thickness ranging from 2 to 19 μm were electrodeposited onto Cu wire substrates. Samples exhibit radial magnetic anisotropy as deduced from hysteresis loops and magnetic force microscopy imaging. These microtubes show quite noticeable giant magnetoimpedance effect (GMI) with amplitude depending on layer thickness and ...
J. P. Sinnecker, J. M. García, A. Asenjo, M. Vázquez, A. García-Arribas   +4 more
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Giant magnetoimpedance strip and coil sensors

Sensors and Actuators A: Physical, 2001
We present noticeable values of giant magnetoimpedance on a cobalt-rich amorphous alloy, together with a new approach to giant magnetoimpedance devices of reduced size. Values as high as 260% of impedance variation as a function of the applied magnetic field are obtained with the samples in the usual form of long ribbons.
G.V Kurlyandskaya, A Garcı́a-Arribas, J.M Barandiarán, E Kisker   +3 more
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Giant magnetoimpedance: concepts and recent progress

Journal of Magnetism and Magnetic Materials, 2002
The giant magnetoimpedance effect (GMI) consists in drastic changes of the complex impedance of soft magnetic materials upon the application of an external magnetic field. The GMI effect is strongly dependent on the frequency of the applied current and the magnetic anisotropies present in the material, among other factors, which spawn a number of ...
M. Knobel, K.R. Pirota
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Giant magnetoimpedance effect in Fe wires

Materials Science and Engineering: B, 2001
In the present work we report, for the first time, the giant magnetoimpedance effect in pure Fe wire with grain size of tens micrometers. The impedance as well as resistance and reactance decrease with application of d.c.
Jifan Hu, Hongwei Qin
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Giant magnetoimpedance in amorphous Co83.2Mn7.6Si5.8B3.3 microwires

Physical Review B, 2000
The magnetoimpedance (MI) of a glass-coated amorphous ${\mathrm{Co}}_{83.2}{\mathrm{Mn}}_{7.6}{\mathrm{Si}}_{5.8}{\mathrm{B}}_{3.3}$ microwire has been studied up to a frequency of 11 MHz and varying a dc magnetic field ${(H}_{\mathrm{dc}})$ within \ifmmode\pm\else\textpm\fi{}140 Oe.
K. Mandal, S. Puerta, M. Vázquez, A. Hernando   +3 more
openaire   +1 more source