Paper Title:
Magnetic Properties and the Giant Magneto-Impedance in Joule-Heated Glass-Covered Co-Based Microwire
  Abstract

The influence of DC current annealing on magnetic properties and the frequency dependence in the range from 0.1 to 20 MHz of the giant magnetoimpedance effect (GMI) of glass-covered amorphous microwires were investigated. Under a certain annealing condition (10 min annealing with applied current Ia=110 mA), the maximum change of impedance was about 200% with a maximum slope sensitivity of 0.26%/Am-1 . Further treatment with increased current resulted in a decrease of the maximum MI ratio. Meanwhile, annealing can produce short-range order relaxation and consequently improves the sample's soft magnetic properties. We also found that the GMI ratio increased due to the enhanced induced anisotropy with increasing current under the same Joule energy.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
1407-1410
DOI
10.4028/www.scientific.net/AMR.79-82.1407
Citation
B. Tian, L.H. Wang, L.Y. Zhou, "Magnetic Properties and the Giant Magneto-Impedance in Joule-Heated Glass-Covered Co-Based Microwire", Advanced Materials Research, Vols. 79-82, pp. 1407-1410, 2009
Online since
August 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Ping Li, Z.J. Zhao, T.B. Oh, H.L. Seet
Abstract:In order to develop high sensitivity micro sensors for bio-magnetic field using NiFe electroplated composite sensing elements, it is...
167
Authors: Hong Bo Zhang, Cheng Bao Jiang
Abstract:The Tb/Dy ratio of Tb0.30Dy0.70Fe1.95 giant magnetostrictive alloy was shifted away from 0.30/0.70 to 0.36/0.64 to enlarge the operating...
2205
Authors: Arkadi Zhukov, V. Zhukova, J. Gonzalez, Larissa V. Panina, J.M. Blanco
Abstract:We report on tailoring magnetic properties and giant magneto-impedance GMI in glasscoated microwires fabricated by the Taylor-Ulitovsky...
180
Authors: N.A. Buznikov, A.S. Antonov, A.A. Rakhmanov
Abstract:The effect of bias current on the appearance of higher harmonics in the nonlinear mag¬netoimpedance in amorphous wires with a circular...
329
Authors: Bin Tian, Yin Li Xia
Chapter 2: Advanced Building Materials
Abstract:The glass-covered Co-rich amorphous wires was annealed by an applied stress during the current annealing process. The influence of stress and...
1119