Chiral antiferromagnetic Josephson junctions as spin-triplet supercurrent spin valves and d.c. SQUIDs
DC Field | Value | Language |
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dc.contributor.author | Jeon, K.-R. | - |
dc.contributor.author | Hazra, B.K. | - |
dc.contributor.author | Kim, J.-K. | - |
dc.contributor.author | Jeon, J.-C. | - |
dc.contributor.author | Han, H. | - |
dc.contributor.author | Meyerheim, H.L. | - |
dc.contributor.author | Kontos, T. | - |
dc.contributor.author | Cottet, A. | - |
dc.contributor.author | Parkin, S.S.P. | - |
dc.date.accessioned | 2023-10-26T07:48:25Z | - |
dc.date.available | 2023-10-26T07:48:25Z | - |
dc.date.issued | 2023-07 | - |
dc.identifier.issn | 1748-3387 | - |
dc.identifier.issn | 1748-3395 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/68299 | - |
dc.description.abstract | Spin-triplet supercurrent spin valves are of practical importance for the realization of superconducting spintronic logic circuits. In ferromagnetic Josephson junctions, the magnetic-field-controlled non-collinearity between the spin-mixer and spin-rotator magnetizations switches the spin-polarized triplet supercurrents on and off. Here we report an antiferromagnetic equivalent of such spin-triplet supercurrent spin valves in chiral antiferromagnetic Josephson junctions as well as a direct-current superconducting quantum interference device. We employ the topological chiral antiferromagnet Mn3Ge, in which the Berry curvature of the band structure produces fictitious magnetic fields, and the non-collinear atomic-scale spin arrangement accommodates triplet Cooper pairing over long distances (>150 nm). We theoretically verify the observed supercurrent spin-valve behaviours under a small magnetic field of <2 mT for current-biased junctions and the direct-current superconducting quantum interference device functionality. Our calculations reproduce the observed hysteretic field interference of the Josephson critical current and link these to the magnetic-field-modulated antiferromagnetic texture that alters the Berry curvature. Our work employs band topology to control the pairing amplitude of spin-triplet Cooper pairs in a single chiral antiferromagnet. © 2023, The Author(s). | - |
dc.format.extent | 7 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Nature Research | - |
dc.title | Chiral antiferromagnetic Josephson junctions as spin-triplet supercurrent spin valves and d.c. SQUIDs | - |
dc.type | Article | - |
dc.identifier.doi | 10.1038/s41565-023-01336-z | - |
dc.identifier.bibliographicCitation | Nature Nanotechnology, v.18, no.7, pp 747 - 753 | - |
dc.description.isOpenAccess | Y | - |
dc.identifier.wosid | 000961004600002 | - |
dc.identifier.scopusid | 2-s2.0-85151446125 | - |
dc.citation.endPage | 753 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 747 | - |
dc.citation.title | Nature Nanotechnology | - |
dc.citation.volume | 18 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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