Magnetic properties of short amorphous microwires

Magnetic properties of amorphous Fe- and Go-rich wires with different magne tostriction are studied in dependence on their length (8 mm < L < 28 mm). F or Co-rich wires a critical wire length L* is estimated. It is shown that f or L < L* the influence of demagnetizing fields on the wire magnetization i s substantial and the wire remanent magnetization is proportional to the sq uare of the wire length. The oscillations of the magnetic moment component parallel to the wire axis during the cross remagnetization processes are fo und. (C) 1999 Elsevier Science B.V. All rights reserved.