Abstract
We report on preparation and magnetic properties of Fe71.7B13.4Si11Nb3Ni0.9 glass-coated microwire with metallic nucleus diameter d = 103 μm and total diameter D = 158 μm prepared by Taylor-Ulitovsky method. Amorphous structure of as-prepared microwires is confirmed by X-ray diffraction. As-prepared glass-coated microwires present relatively high GMI effect (about 50%) and relatively low coercivity (about 25 A/m). Additionally, as-prepared sample present rectangular hysteresis loop and fast single domain wall propagation with domain wall mobility of about 11,9 m2/As. After annealing we observed considerable improvement of the GMI ratio (from 50% up to 100%). Observed GMI effect improvement has been attributed to the stresses relaxation. From aforementioned studies we can conclude that the Taylor-Ulitovsky technique allows us to obtain thick ferromagnetic microwires with good magnetic properties and GMI effect suitable for industrial applications.
Highlights
IntroductionAmorphous and crystalline magnetically wires can present unique magnetic properties like the giant magnetoimpedance (GMI) effect or fast magnetization switching linked fast propagation of single domain wall (DW) through the wire. amorphous wires are preferable for technical applications since they present superior mechanical and corrosive properties. a number of prospective applications have been developed within recent few years.7–14Glass-coated amorphous magnetic microwires prepared using the Taylor-Ulitovsky technique present a number of advantages related to a great extent to flexible, insulating and biocompatible glass coating allowing development of completely new applications.11,12It is commonly believed that the Taylor-Ulitovsky technique allows preparation of only relatively thin magnetic microwires with metallic diameters ranging between 0.5-50 μm. for certain applications, i.e., related to smart composite materials for non-contact stress and temperature monitoring or magnetic tags thicker microwires are demanded
It is commonly believed that the Taylor-Ulitovsky technique allows preparation of only relatively thin magnetic microwires with metallic diameters ranging between 0.5-50 μm
We have studied magnetic properties of Fe71.7B13.4Si11Nb3Ni0.9 glass-coated microwire with metallic nucleus diameter d = 103 μm and total diameter D = 158 μm prepared using the Taylor-Ulitovsky method described in details elsewhere
Summary
Amorphous and crystalline magnetically wires can present unique magnetic properties like the giant magnetoimpedance (GMI) effect or fast magnetization switching linked fast propagation of single domain wall (DW) through the wire. amorphous wires are preferable for technical applications since they present superior mechanical and corrosive properties. a number of prospective applications have been developed within recent few years.7–14Glass-coated amorphous magnetic microwires prepared using the Taylor-Ulitovsky technique present a number of advantages related to a great extent to flexible, insulating and biocompatible glass coating allowing development of completely new applications.11,12It is commonly believed that the Taylor-Ulitovsky technique allows preparation of only relatively thin magnetic microwires with metallic diameters ranging between 0.5-50 μm. for certain applications, i.e., related to smart composite materials for non-contact stress and temperature monitoring or magnetic tags thicker microwires are demanded.. Amorphous and crystalline magnetically wires can present unique magnetic properties like the giant magnetoimpedance (GMI) effect or fast magnetization switching linked fast propagation of single domain wall (DW) through the wire.. Amorphous wires are preferable for technical applications since they present superior mechanical and corrosive properties.. A number of prospective applications have been developed within recent few years.. Glass-coated amorphous magnetic microwires prepared using the Taylor-Ulitovsky technique present a number of advantages related to a great extent to flexible, insulating and biocompatible glass coating allowing development of completely new applications.. It is commonly believed that the Taylor-Ulitovsky technique allows preparation of only relatively thin magnetic microwires with metallic diameters ranging between 0.5-50 μm.. For certain applications, i.e., related to smart composite materials for non-contact stress and temperature monitoring or magnetic tags thicker microwires are demanded.
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