Enhancement of giant magneto-impedance effect in Ni(80)Fe(20)/SiO(2)/Cu composite wires

Enhancement of giant magneto-impedance effect in Ni(80)Fe(20)/SiO(2)/Cu composite wires

Ni(80)Fe(20)/SiO(2)/Cu composite wires of Cu core 60 km in diameter and coated with layers of SiO(2) and Ni(80)Fe(20) were prepared by RF magnetron sputtering. The influences of the insulator layer thickness, the measurement mode and the magnitude of the driving current on the giant magneto- impedan...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physica. B, Condensed matter Condensed matter, 2009-11, Vol.404 (20), p.3766-3770
Hauptverfasser: Shi, Lingyan, Ruan, Jianzhong, Zhang, Juan, Zhao, Zhenjie, Gao, H B, Hartmann, U
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Ni(80)Fe(20)/SiO(2)/Cu composite wires of Cu core 60 km in diameter and coated with layers of SiO(2) and Ni(80)Fe(20) were prepared by RF magnetron sputtering. The influences of the insulator layer thickness, the measurement mode and the magnitude of the driving current on the giant magneto- impedance (GMI) effect were investigated. The results showed that there was an optimum thickness of the insulator layer and the driving current can influence the shape of the MI curve. Resonance enhancement of the GMI was found in the new measurement mode. The results are discussed by taking account of the electromagnetic interactions.
ISSN:0921-4526
DOI:10.1016/j.physb.2009.06.139