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Journal of Magnetism and Magnetic Materials 188 (1998) L1--L7 Letter to the Editor
 

Summary: Journal of Magnetism and Magnetic Materials 188 (1998) L1--L7
Letter to the Editor
Magnetic and magneto-transport behavior in variable width
Ni

Fe

flat wires
A.O. Adeyeye, J.A.C. Bland*, C. Daboo
Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, UK
Received 23 November 1997; received in revised form 21 April 1998
Abstract
In this letter, we present the results of a comprehensive study of the magnetic and magneto-transport properties in
variable width wire arrays based on Ni

Fe

films of thickness 30--50 nm. For fixed width structures, we observe a linear
dependence of the coercivity H on the ratio t/w of thickness (t) to the width (w) for t/w)0.12. This result indicates that
dipolar fields within each wire control the coercivity for small t/w. We have demonstrated that by carefully selecting

  

Source: Adeyeye, Adekunle - Department of Electrical and Computer Engineering, National University of Singapore

 

Collections: Physics; Materials Science