DocumentCode :
1573796
Title :
Dynamical hysteresis in magnetostrictive amorphous microwires
Author :
Sandacci, S.I. ; Grigorenko, A.N. ; Panina, L.V. ; Mapps, D.J.
Author_Institution :
Dept. of Electron. Eng., Univ. of Plymouth, UK
fYear :
2002
Abstract :
Summary form only given. Amorphous magnetostrictive wires exhibit very rapid bistable magnetisation reversal (large Barkhausen jump). This property makes them unique for applications in security sensors and pulse generators. As operational frequencies become progressively higher, there is an interest in studying the magnetisation reversal in bistable wires at corresponding frequencies. On the other hand, most of experiments of hysteresis in these materials (and in general) are performed under dc or quasi dc conditions. In this paper, the hysteresis loops in Fe/sub 76/Si/sub 13/B/sub 11/ amorphous wires with glass cover have been measured for frequencies up to 200 kHz. The results are analysed a in terms of dynamic process of reversal domain nucleation and propagation.
Keywords :
Barkhausen effect; amorphous magnetic materials; boron alloys; ferromagnetic materials; iron alloys; magnetic domains; magnetic hysteresis; magnetisation reversal; magnetostriction; silicon alloys; 200 kHz; Fe/sub 76/Si/sub 13/B/sub 11/; bistable wires; dynamical hysteresis; large Barkhausen jump; magnetostrictive amorphous microwires; reversal domain nucleation; very rapid bistable magnetisation reversal; Amorphous magnetic materials; Amorphous materials; Frequency; Hysteresis; Magnetic sensors; Magnetization reversal; Magnetostriction; Pulse generation; Security; Wires;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
Type :
conf
DOI :
10.1109/INTMAG.2002.1001345
Filename :
1001345
Link To Document :
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