A spin-valve thin film element comprises a pinned magnetic layer formed of a CoFe alloy or a CoFeNi alloy having adjusted composition ratios. Thus the pinned magnetic layer can have a positive magnetostriction and its magnetization can be induced in the height direction as a function of the magnetoelastic...http://www.google.com.au/patents/US6210818?utm_source=gb-gplus-sharePatent US6210818 - Magnetoresistive element
