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Electrically Tunable Susceptibility of Synthetic Antiferromagnet Lines

TitleElectrically Tunable Susceptibility of Synthetic Antiferromagnet Lines
Publication TypeJournal Article
Year of Publication2006
AuthorsAn, N., and A. Jander
JournalIEEE Transactions on Magnetics
Volume42
Issue10
Pagination3383 - 3385
Date Published10/2006
ISSN0018-9464
Keywordsmagnetic permeability, magnetic susceptibility, magnetic thin films, tunability
Abstract

A current-carrying synthetic antiferromagnet (SAF) structure, which consists of two ferromagnetic layers antiferromagnetically coupled to one another through an exchange coupling layer, is being studied. Using typical values of an Ni₈₀Fe₂₀ SAF structure and aided by numerical calculation, we predict that its effective susceptibility can be varied by current. The maximum change in susceptibility and the corresponding critical current are expressed in analytical forms. An electrically tunable thin-film magnetic core can find wide applications in magnetic sensors and tunable magnetic components

DOI10.1109/TMAG.2006.879084
Short TitleIEEE Trans. Magn.