Models of the energy landscape for an element of shakti spin ice

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorArnalds, U. B.
dc.contributor.authorLiashko, S. Y.
dc.contributor.authorBessarab, P. F.
dc.contributor.authorUzdin, V. M.
dc.contributor.authorJonsson, H.
dc.contributor.departmentUniversity of Iceland
dc.contributor.departmentSt. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
dc.contributor.departmentSt. Petersburg State University
dc.contributor.departmentMultiscale Statistical and Quantum Physics
dc.contributor.departmentDepartment of Applied Physicsen
dc.date.accessioned2021-03-10T07:28:26Z
dc.date.available2021-03-10T07:28:26Z
dc.date.issued2018-12
dc.description.abstractMicromagnetic calculations are compared with faster model calculations of interacting nanoscopic magnetic islands representing an element of a shakti spin ice lattice. Several pathways for transitions between equivalent ground states are studied. The model calculations describe the interaction between the islands either with the point dipole approximation, or with a dumbbell approximation where the distance between the two poles is optimized to match the micromagnetic results. The closest agreement in the energy of both local minima as well as transition state configurations where one macrospin has rotated by 90 degrees is obtained with a dumbbell model where the distance between the poles is ca. 20 % smaller than the island length.en
dc.description.versionPeer revieweden
dc.format.extent5
dc.format.extent711-715
dc.format.mimetypeapplication/pdf
dc.identifier.citationArnalds , U B , Liashko , S Y , Bessarab , P F , Uzdin , V M & Jonsson , H 2018 , ' Models of the energy landscape for an element of shakti spin ice ' , Nanosystems: Physics, Chemistry, Mathematics , vol. 9 , no. 6 , pp. 711-715 . https://doi.org/10.17586/2220-8054-2018-9-6-711-715en
dc.identifier.doi10.17586/2220-8054-2018-9-6-711-715
dc.identifier.issn2220-8054
dc.identifier.issn2305-7971
dc.identifier.otherPURE UUID: a9ee4150-bb86-4d8c-a22d-33ed85271e92
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/a9ee4150-bb86-4d8c-a22d-33ed85271e92
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/56809135/NPCM96P711_715.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/102987
dc.identifier.urnURN:NBN:fi:aalto-202103102273
dc.language.isoenen
dc.publisherST PETERSBURG NATL RESEARCH UNIV INFORMATION TECHNOLOGIES, MECH & OPTICS
dc.relation.ispartofseriesNanosystems: Physics, Chemistry, Mathematicsen
dc.relation.ispartofseriesVolume 9, issue 6en
dc.rightsopenAccessen
dc.subject.keywordmagnetic islands
dc.subject.keywordactivation energy
dc.subject.keywordmicromagnetics
dc.subject.keyworddipole interaction
dc.subject.keyworddumbbell
dc.subject.keywordspin ice
dc.subject.keywordLATTICE
dc.subject.keywordFIELD
dc.titleModels of the energy landscape for an element of shakti spin iceen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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