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

FX Qin, H-X Peng, MH Phan

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

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 and a double-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 , determined from GMI curves, increases with h=4.11 to h=8.07 and decreases when h>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.
Translated title of the contributionInfluence of varying metal-to-glass ratio on GMI effect in Co70.3Fe.7B10Si13Cr3 amorphous glass-coated microwires
Original languageEnglish
Pages (from-to)114 - 117
Number of pages4
JournalSolid State Communications
Volume150 (1-2)
DOIs
Publication statusPublished - Jan 2010

Bibliographical note

Publisher: Elsevier

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