• Patent Title: Magnetoresistive element having an adjustable magnetostriction and magnetic device comprising this magnetoresistive element
  • Application No.: US16083163
    Application Date: 2017-03-06
  • Publication No.: US10665774B2
    Publication 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
Magnetoresistive element having an adjustable magnetostriction and magnetic device comprising this magnetoresistive element
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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