Influence of varying metal-to-glass ratio on GMI effect in Co70.3Fe3.7B10Si13Cr3 amorphous glass-coated microwires

F. X. Qin*, H. X. Peng, M. H. Phan

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

15 Citations (Scopus)

Abstract

The influence of a varying metal-to-glass ratio on the GMI effect in amorphous glass-coated Co70.3Fe3.7B10Si13Cr3 microwires has been investigated. In the range of frequencies investigated (1-10 MHz), the magnitude of the GMI effect increases as the metal-to-glass ratio (h) increases from 4.11 to 9.29. The GMI curves for the h = 4.11 microwire exhibit a single-peak feature for f 1 MHz, whereas a consistent double-peak feature is observed for microwires with h = 8.07, 8.72, and 9.29. The largest GMI effect is achieved for microwires with h = 9.29. The anisotropy field (H-k), determined from GMI curves, increases with h = 4.11 to h = 8.07 and decreases when It > 8.07. The calculated radial stress decreases as h increases from 4.11 to 9.29. These results provide further insights into the correlation between the GMI effect and microwire dimensions towards the GMI optimization of amorphous glass-coated magnetic microwires for sensor applications. (C) 2009 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)114-117
Number of pages4
JournalSolid State Communications
Volume150
Issue number1-2
DOIs
Publication statusPublished - Jan 2010

Keywords

  • MAGNETO-IMPEDANCE
  • Magnetic sensors
  • STRESSES
  • GIANT MAGNETOIMPEDANCE
  • Giant magnetoimpedance
  • WIRES
  • Glass-coated microwires
  • SENSORS
  • MAGNETOSTRICTION
  • ANISOTROPY

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