Abstract
Hysteresis loop measurements of several Fe-rich glass-coated amorphous microwires of Fe 65Si 15B 15C 5 composition have been performed using the conventional fluxmetric and SQUID magnetometers and magneto-optical Kerr effect technique. The number of the wires used in the measurements has been varied from 1 to 10. The hysteresis loops exhibit large Barkhausen jumps (LBJ) between two remanent states for all number of the wires involved in the measurements. The number of jumps is correlated with the number of wires. The lowest switching field decreases as the number of wires increases. The shape of the hysteresis loop and the switching field values depend on the sweeping rate, d H/d t, and on the distance between wires. The obtained results have been analyzed considering the mutual influence of the wires due to stray field effects. The superposition of external and stray fields creates some spatial distribution of the magnetic field to produce successive magnetization reversals in the multi-wire system.
Published Version
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