Inter- and intra-nanowire magnetic interaction in Co/Cu multilayer nanowires deposited by electrochemical deposition

Abstract

Intra- and inter-wire magnetic interactions in Co/Cu multilayer nanowire arrays have been studied with the Henkel plot method. It has been found that the intra-nanowire interaction greatly decreases with an increase in the Cu spacer thickness. Magnetoresistance of 0.16% has been obtained in Co(200nm)/Cu(5nm)/Co(10nm) junction. However, the magnetoresistance effect is negligible both in the juctions with strong intra-nanowire interaction ( thickness of Cu spacer is less than 3nm) and the juctions with strong current-depolarization (thickness of Cu spacer is more than 17nm).