About: Asymmetric giant magnetoimpedance in stress-field annealed CoFeBSi amorphous ribbons     Goto   Sponge   NotDistinct   Permalink

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Description
  • Amorphous Co66Fe4B15Si15 ribbons field annealed in air atmosphere are known to exhibit highly asymmetric GMI effect, also known as GMI valve [1]. The asymmetry originates from the exchange coupling of the soft magnetic amorphous material with a hard crystalline phase which develops on the ribbon surface during annealing.In this paper we investigate the influence of combination of magnetic field and stress during annealing on the asymmetric GMI. The magnetoimpedance is measured in the frequency range 0.1 - 30 MHz. The fluxmeter and MOKE are used to investigate the bulk and surface hysteresis properties, respectively. The combined heat treatment produces hard ribbon axis anisotropy in the amorphous phase and easy axis anisotropy in the crystalline phase. Both anisotropies can be changed by the annealing conditions and by applied stress. Because of positive magnetostriction constant (lambda_s= 1.9 x 10^-7) easy ribbon axis anisotropy in the amorphous phase is obtained by applying tensile stress. Then the
  • Amorphous Co66Fe4B15Si15 ribbons field annealed in air atmosphere are known to exhibit highly asymmetric GMI effect, also known as GMI valve [1]. The asymmetry originates from the exchange coupling of the soft magnetic amorphous material with a hard crystalline phase which develops on the ribbon surface during annealing.In this paper we investigate the influence of combination of magnetic field and stress during annealing on the asymmetric GMI. The magnetoimpedance is measured in the frequency range 0.1 - 30 MHz. The fluxmeter and MOKE are used to investigate the bulk and surface hysteresis properties, respectively. The combined heat treatment produces hard ribbon axis anisotropy in the amorphous phase and easy axis anisotropy in the crystalline phase. Both anisotropies can be changed by the annealing conditions and by applied stress. Because of positive magnetostriction constant (lambda_s= 1.9 x 10^-7) easy ribbon axis anisotropy in the amorphous phase is obtained by applying tensile stress. Then the (en)
  • Asymetrická obrovská magnetoimpedance amorfních CoFeBSi pásků žíhaných v tlakovém poli (cs)
Title
  • Asymmetric giant magnetoimpedance in stress-field annealed CoFeBSi amorphous ribbons
  • Asymmetric giant magnetoimpedance in stress-field annealed CoFeBSi amorphous ribbons (en)
  • Asymetrická obrovská magnetoimpedance amorfních CoFeBSi pásků žíhaných v tlakovém poli (cs)
skos:prefLabel
  • Asymmetric giant magnetoimpedance in stress-field annealed CoFeBSi amorphous ribbons
  • Asymmetric giant magnetoimpedance in stress-field annealed CoFeBSi amorphous ribbons (en)
  • Asymetrická obrovská magnetoimpedance amorfních CoFeBSi pásků žíhaných v tlakovém poli (cs)
skos:notation
  • RIV/61989100:27350/04:00011054!RIV/2005/GA0/273505/N
http://linked.open.../vavai/riv/strany
  • 65
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/03/0776)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 555518
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27350/04:00011054
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Amorphous systems # soft magnetic;magnetoimpedance;exchange bias;anisotropy - induced (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [78735E366232]
http://linked.open...i/riv/mistoVydani
  • Drážďany
http://linked.open...i/riv/nazevZdroje
  • Joint European Magnetic Symposia
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Postava, Kamil
  • Janičkovič, D.
  • Kraus, L.
  • Malátek, M.
number of pages
http://purl.org/ne...btex#hasPublisher
  • Institut of Theoretical and Applied Mechanics
http://localhost/t...ganizacniJednotka
  • 27350
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