Influence of antisymmetric exchange interaction on quantum tunneling of magnetization in a dimeric molecular magnet Mn6

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dc.creatorBahr, S.
dc.creatorMilios, C. J.
dc.creatorJones, L. F.
dc.creatorBrechin, E. K.
dc.creatorMosser, V.
dc.creatorWernsdorfer, W.
dc.date2008-10-03
dc.date.accessioned2026-07-07T10:07:28Z
dc.date.available2026-07-07T10:07:28Z
dc.descriptionWe present magnetization measurements on the single molecule magnet Mn6, revealing various tunnel transitions inconsistent with a giant-spin description. We propose a dimeric model of the molecule with two coupled spins S=6, which involves crystal-field anisotropy, symmetric Heisenberg exchange interaction, and antisymmetric Dzyaloshinskii-Moriya exchange interaction. We show that this simplified model of the molecule explains the experimentally observed tunnel transitions and that the antisymmetric exchange interaction between the spins gives rise to tunneling processes between spin states belonging to different spin multiplets.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0810.0616
dc.identifierhttp://arxiv.org/abs/0810.0616
dc.identifierPhys. Rev. B 78, 132401 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.132401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170646
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleInfluence of antisymmetric exchange interaction on quantum tunneling of magnetization in a dimeric molecular magnet Mn6
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