Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 강원 | * |
dc.date.accessioned | 2019-01-24T16:30:13Z | - |
dc.date.available | 2019-01-24T16:30:13Z | - |
dc.date.issued | 2018 | * |
dc.identifier.issn | 0935-9648 | * |
dc.identifier.other | OAK-24134 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/248249 | - |
dc.description.abstract | The 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.language | English | * |
dc.publisher | Wiley-VCH Verlag | * |
dc.subject | anisotropic magnetoresistance | * |
dc.subject | antiferromagnetic spintronics | * |
dc.subject | isospins | * |
dc.subject | perovskite iridates | * |
dc.title | Antiferromagnet-Based Spintronic Functionality by Controlling Isospin Domains in a Layered Perovskite Iridate | * |
dc.type | Article | * |
dc.relation.issue | 52 | * |
dc.relation.volume | 30 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | Advanced Materials | * |
dc.identifier.doi | 10.1002/adma.201805564 | * |
dc.identifier.wosid | WOS:000454124800028 | * |
dc.identifier.scopusid | 2-s2.0-85055674649 | * |
dc.author.google | Lee N. | * |
dc.author.google | Ko E. | * |
dc.author.google | Choi H.Y. | * |
dc.author.google | Hong Y.J. | * |
dc.author.google | Nauman M. | * |
dc.author.google | Kang W. | * |
dc.author.google | Choi H.J. | * |
dc.author.google | Choi Y.J. | * |
dc.author.google | Jo Y. | * |
dc.contributor.scopusid | 강원(7202402145) | * |
dc.date.modifydate | 20240116110212 | * |