Giant magnetoimpedance effects in the soft ferromagnetFe73.5CuNb3

Very large magneto-impedance and its scaling behavior in amorphous Fe73.5Nb3Cu1Si13.5B9 ribbon

“…The maximum changes in δR and δX reduces with the increase of frequency. This is attributed to the decrease in permeability at higher frequencies 25 . At frequencies above 1MHz, δX becomes positive at low fields and exhibit peaks.…”

“…The impedance 'Z' for a magnetic ribbon with thickness '2d' excited by an a.c current through a coil mounted on it can be expressed in terms of complex wave vector 'k' as: 24 and ribbons 25 although the behavior improved after transverse field annealing of the films and nanocrystallization of ribbons.…”

Giant Magneto-Impedance Effect in Amorphous Wires

“…Nanocrystalline materials prepared from amorphous precursors as FeCuNbSiB (FINEMET) or FeHfB and FeZrB present very soft magnetic properties and can be very interesting for GMI applications [17][18][19][20]39].…”

“…The influence of the mechanical stress, torque, annealing and magnetic annealing on the GMI effect were extensively investigated [13][14][15][16]. The appearance of the GMI effect in nanocrystalline materials and in conventional crystalline materials as permalloy wires and thin films has been recently announced [17][18][19][20][21]. New models more and more complex, explaining this phenomenon have been developed recently [22][23][24][25][26][27][28].…”

New 1D–2D magnetic sensors for applied electromagnetic engineering

“…Sum of works around the world are dedicated to the discovery of new MI materials in the form of: -amorphous wires: Blanco et al [10], Brunetti et al [11] and Vázquez [12]; * Corresponding author. -ribbons: Ahn et al [13], Pirota et al [14], Sommer and Chien [15], Tejedor et al [16]; -sputtered thin films: Panina et al [17]; -isolated layers: Antonov et al [18], Morikawa et al [19], Yu et al [20]) or conductors: Zhou et al [21]; -nanocrystalline ribbons: Chen et al [22], Guo et al [23], Knobel et al [24], Tejedor et al [25]; -glass-coated micro-wires: Chiriac et al [26], Chiriac and Ovári [27], Kraus et al [28], Pirota et al [29] and Vázquez et al [30].…”