Summary: Journal of Magnetism and Magnetic Materials 316 (2007) e31­e34
Cross-over from coherent rotation to inhomogeneous reversal
mode in interacting ferromagnetic nanowires
P. Vavassoria,Ã, V. Bonannia
, G. Gubbiottib
, A.O. Adeyeyec
, S. Goolaupc
, N. Singhc
a
CNR-INFM S3 and Dipartimento di Fisica, Universita` di Ferrara, via Saragat 1, Ferrara, Italy
b
Research Center SOFT-INFM-CNR, Universita' di Roma ``La Sapienza,'' I-00185 Roma, Italy
c
Information Storage Materials Laboratory, Department of Electrical and Computer Engineering,
National University of Singapore, 4 Engineering Drive 3, Singapore 117576, Singapore
Available online 25 February 2007
Abstract
We have investigated the magnetization reversal mechanism and the effects of magnetostatic interaction in arrays of lithographically
defined Permalloy nanowires with a fixed width of 185 nm, spacing of 35 nm and film thicknesses from 10 to 120 nm. The magnetization
reversal has been investigated with vectorial Magneto-Optical Kerr Effect magnetometry. The vectorial hysteresis loops (in-plane

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

Collections: Physics; Materials Science