Invention Grant
- Patent Title: Magnetoresistive element having an adjustable magnetostriction and magnetic device comprising this magnetoresistive element
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Application No.: US16083163Application Date: 2017-03-06
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Publication No.: US10665774B2Publication Date: 2020-05-26
- Inventor: Sebastien Bandiera
- Applicant: Crocus Technology SA
- Agency: Pearne & Gordon LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@71dd1f3e
- International Application: PCT/IB2017/051282 WO 20170306
- International Announcement: WO2017/153883 WO 20170914
- Main IPC: G11C11/00
- IPC: G11C11/00 ; H01L43/08 ; H01L43/12 ; H01F10/32

Abstract:
A magnetoresistive element including: a storage layer having a first storage magnetostriction; a sense layer having a first sense magnetostriction; and a barrier layer between and in contact with the storage and sense layer. The magnetoresistive element also includes a compensating ferromagnetic layer having a second magnetostriction different from the first storage magnetostriction and/or sense magnetostriction, and adapted to compensate the first storage magnetostriction and/or the first sense magnetostriction so that a net magnetostriction of the storage layer and/or sense layer is adjustable between −10 ppm and +10 ppm or more negative than −10 ppm by adjusting a thickness of the compensating ferromagnetic layer. The present disclosure also concerns a magnetic device comprising the magnetoresistive element.
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