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Electrical detection and control of synthetic antiferromagnets via perpendicular nanoscale magnetic tunnel junctions

Date

2026
Journal article
https://doi.org/10.1103/ghln-jmzt
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dc.contributor.authorGiuliano, Domenico
dc.contributor.authorVermeulen, Bob
dc.contributor.authorKateel, Vaishnavi
dc.contributor.authorTalmelli, Giacomo
dc.contributor.authorGama Monteiro Junior, Maxwel
dc.contributor.authorRao, Siddharth
dc.contributor.authorFleischmann, Claudia
dc.contributor.authorWostyn, Kurt
dc.contributor.authorCouet, Sebastien
dc.contributor.authorTemst, Kristiaan
dc.contributor.authorNguyen, Van Dai
dc.date.accessioned2026-06-04T10:11:19Z
dc.date.available2026-06-04T10:11:19Z
dc.date.createdwos2026-04-04
dc.date.issued2026
dc.description.abstractDetecting the magnetic states of synthetic antiferromagnets (SAFs) at the nanoscale is challenging due to their low net magnetization. We demonstrate an electrical method based on tunneling magnetoresistance (TMR) in nanoscale magnetic tunnel junctions to selectively detect the magnetization of a single SAF sublayer. TMR hysteresis loops reveal distinct switching behaviors governed by the competition between magnetic anisotropy and interlayer exchange coupling. This sensitivity enables direct quantification of exchange coupling under both field- and spin-transfer torque-driven reversals, while accessing the overall SAF magnetic state independent of its net magnetization.
dc.description.wosFundingTextThis work was performed as part of the IMEC Industrial Affiliation Program on MRAM devices. We acknowledge the P -line for operational support. This work has been enabled in part by the NanoIC pilot line. The acquisition and operation are jointly funded by the Chips Joint Undertaking, through the European Union's Digital Europe (101183266) and Horizon Europe programs (101183277) , as well as by the participating states Belgium (Flanders) , France, Germany, Finland, Ireland, and Romania. For more information, visit nanoic-project.eu. D.G. acknowledges FWO-Vlaanderen for Strategic Basic Research PhD fellowship No. 1SHEV24N. B.B.V acknowledges FWO-Vlaanderen for Strategic Basic Research PhD fellowship No. 1S72225N. K.T. acknowledges the KU Leuven C14/24/110 program and the FWO-FNRS Weave program. V.D.N thanks J.Chatterjee for fruitful discussions.
dc.identifier.doi10.1103/ghln-jmzt
dc.identifier.issn2331-7019
dc.identifier.urihttps://imec-publications.be/handle/20.500.12860/59563
dc.language.isoeng
dc.provenance.editstepusergreet.vanhoof@imec.be
dc.publisherAMER PHYSICAL SOC
dc.source.beginpage034083
dc.source.issue3
dc.source.journalPHYSICAL REVIEW APPLIED
dc.source.numberofpages12
dc.source.volume25
dc.subject.keywordsSPINTRONICS
dc.title

Electrical detection and control of synthetic antiferromagnets via perpendicular nanoscale magnetic tunnel junctions

dc.typeJournal article
dspace.entity.typePublication
imec.internal.crawledAt2026-04-07
imec.internal.sourcecrawler
imec.internal.wosCreatedAt2026-04-07
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