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Summary: Journal of Magnetism and Magnetic Materials 213 (2000) L1}L6
Letter to the Editor
Magnetoresistance behaviour of magnetostatically coupled
Ni
Fe
wires
A.O. Adeyeye*, R.P. Cowburn, M.E. Welland
Nanoscale Science Group, Engineering Department, Cambridge University, Cambridge CB2 1PZ, UK
Received 15 September 1999; received in revised form 23 November 1999
Abstract
The magnetostatic coupling in lithographically de"ned 25 nm thick Ni
Fe
wire arrays has been investigated using
magnetoresistance (MR) measurements. The structures consist of array of micron-size wires with inter-wire spacings in
the range from 50 nm to 2 m. For the "eld applied along the easy axis of the magnetostatically coupled wire array,
a novel magnetoresistance behaviour is observed which we explain in terms of anti-parallel alignment of magnetisation in
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