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dc.contributor.authorTu, Sa
dc.contributor.authorZiman, Timothy
dc.contributor.authorYu, Guoqiang
dc.contributor.authorWan, Caihua
dc.contributor.authorHu, Junfeng
dc.contributor.authorWu, Hao
dc.contributor.authorWang, Hanchen
dc.contributor.authorLiu, Mengchao
dc.contributor.authorLiu, Chuanpu
dc.contributor.authorGuo, Chenyang
dc.contributor.authorZhang, Jianyu
dc.contributor.authorCabero Z., Marco A.
dc.contributor.authorZhang, Youguang
dc.contributor.authorGao, Peng
dc.contributor.authorLiu, Song
dc.contributor.authorYu, Dapeng
dc.contributor.authorHan, Xiufeng
dc.contributor.authorHallsteinsen, Ingrid
dc.contributor.authorGilbert, Dustin A.
dc.contributor.authorMatsuo, Mamoru
dc.contributor.authorOhnuma, Yuichi
dc.contributor.authorWölfle, Peter
dc.contributor.authorWang, Kang L.
dc.contributor.authorAnsermet, Jean-Philippe
dc.contributor.authorMaekawa, Sadamichi
dc.contributor.authorYu, Haiming
dc.date.accessioned2022-05-04T08:05:39Z
dc.date.available2022-05-04T08:05:39Z
dc.date.created2020-11-06T10:57:01Z
dc.date.issued2020
dc.identifier.citationNature Communications. 2020, 11 .en_US
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/11250/2994052
dc.description.abstractThe Seebeck effect converts thermal gradients into electricity. As an approach to power technologies in the current Internet-of-Things era, on-chip energy harvesting is highly attractive, and to be effective, demands thin film materials with large Seebeck coefficients. In spintronics, the antiferromagnetic metal IrMn has been used as the pinning layer in magnetic tunnel junctions that form building blocks for magnetic random access memories and magnetic sensors. Spin pumping experiments revealed that IrMn Néel temperature is thickness-dependent and approaches room temperature when the layer is thin. Here, we report that the Seebeck coefficient is maximum at the Néel temperature of IrMn of 0.6 to 4.0 nm in thickness in IrMn-based half magnetic tunnel junctions. We obtain a record Seebeck coefficient 390 (±10) μV K−1 at room temperature. Our results demonstrate that IrMn-based magnetic devices could harvest the heat dissipation for magnetic sensors, thus contributing to the Power-of-Things paradigm.en_US
dc.language.isoengen_US
dc.publisherNature Researchen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleRecord thermopower found in an IrMn-based spintronic stacken_US
dc.title.alternativeRecord thermopower found in an IrMn-based spintronic stacken_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber7en_US
dc.source.volume11en_US
dc.source.journalNature Communicationsen_US
dc.identifier.doi10.1038/s41467-020-15797-6
dc.identifier.cristin1845542
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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