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dc.contributor.author강원-
dc.date.accessioned2019-01-24T16:30:13Z-
dc.date.available2019-01-24T16:30:13Z-
dc.date.issued2018-
dc.identifier.issn0935-9648-
dc.identifier.otherOAK-24134-
dc.identifier.urihttp://dspace.ewha.ac.kr/handle/2015.oak/248249-
dc.description.abstractThe novel electronic state of the canted antiferromagnetic (AFM) insulator strontium iridate (Sr2IrO4) is well described by the spin–orbit-entangled isospin Jeff = 1/2, but the role of isospin in transport phenomena remains poorly understood. In this study, antiferromagnet-based spintronic functionality is demonstrated by combining the unique characteristics of the isospin state in Sr2IrO4. Based on magnetic and transport measurements, a large and highly anisotropic magnetoresistance (AMR) is obtained by manipulating the AFM isospin domains. First-principles calculations suggest that electrons whose isospin directions are strongly coupled to the in-plane net magnetic moment encounter an isospin mismatch when moving across the AFM domain boundaries, which generates a high resistance state. By rotating a magnetic field that aligns in-plane net moments and removes domain boundaries, the macroscopically ordered isospins govern dynamic transport through the system, which leads to the extremely angle-sensitive AMR. As this work establishes a link between isospins and magnetotransport in strongly spin–orbit-coupled AFM Sr2IrO4, the peculiar AMR effect provides a beneficial foundation for fundamental and applied research on AFM spintronics. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim-
dc.languageEnglish-
dc.publisherWiley-VCH Verlag-
dc.subjectanisotropic magnetoresistance-
dc.subjectantiferromagnetic spintronics-
dc.subjectisospins-
dc.subjectperovskite iridates-
dc.titleAntiferromagnet-Based Spintronic Functionality by Controlling Isospin Domains in a Layered Perovskite Iridate-
dc.typeArticle-
dc.relation.issue52-
dc.relation.volume30-
dc.relation.indexSCI-
dc.relation.indexSCIE-
dc.relation.indexSCOPUS-
dc.relation.journaltitleAdvanced Materials-
dc.identifier.doi10.1002/adma.201805564-
dc.identifier.wosidWOS:000454124800028-
dc.identifier.scopusid2-s2.0-85055674649-
dc.author.googleLee N.-
dc.author.googleKo E.-
dc.author.googleChoi H.Y.-
dc.author.googleHong Y.J.-
dc.author.googleNauman M.-
dc.author.googleKang W.-
dc.author.googleChoi H.J.-
dc.author.googleChoi Y.J.-
dc.author.googleJo Y.-
dc.contributor.scopusid강원(7202402145)-
dc.date.modifydate20190128094344-
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자연과학대학 > 물리학전공 > Journal papers
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