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http://hdl.handle.net/10261/117607
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dc.contributor.author | Badía-Romano, L. | - |
dc.contributor.author | Bartolomé, Fernando | - |
dc.contributor.author | Bartolomé, Juan | - |
dc.contributor.author | Luzón, Javier | - |
dc.contributor.author | Prodius, D. | - |
dc.contributor.author | Turta, C. | - |
dc.contributor.author | Mereacre, V. | - |
dc.contributor.author | Wilhelm, F. | - |
dc.contributor.author | Rogalev, A. | - |
dc.date.accessioned | 2015-07-06T10:56:24Z | - |
dc.date.available | 2015-07-06T10:56:24Z | - |
dc.date.issued | 2013 | - |
dc.identifier | doi: 10.1103/PhysRevB.87.184403 | - |
dc.identifier | issn: 1098-0121 | - |
dc.identifier | e-issn: 1550-235X | - |
dc.identifier.citation | Physical Review B 87: 184403 (2013) | - |
dc.identifier.uri | http://hdl.handle.net/10261/117607 | - |
dc.description | Under the terms of the Creative Commons Attribution License 3.0 (CC-BY). | - |
dc.description.abstract | The intramolecular exchange interactions within the single-molecule magnet (SMM) "butterfly" molecule [Fe3Ln(μ3-O) 2(CCl3COO)8(H2O)(THF)3], where Ln(III) represents a lanthanide cation, are determined in a combined experimental [x-ray magnetic circular dichroism (XMCD) and vibrating sample magnetometer (VSM)] and theoretical work. Compounds with Ln=Gd and Dy, which represent extreme cases where the rare earth presents single-ion isotropic and uniaxial anisotropy, on one hand, and with Ln=Lu and Y(III) as pseudolanthanide substitutions that supply a nonmagnetic Ln reference case, on the other hand, are studied. The Dy single-ion uniaxial anisotropy is estimated from ab initio calculations. Low-temperature (T 2.5 K) hard x-ray XMCD at the Ln L 2,3 edges and VSM measurements as a function of the field indicate that the Ln moment dominates the polarization of the molecule by the applied field. Within the {Fe3LnO2} cluster the Ln-Fe3 subcluster interaction is determined to be antiferromagnetic in both Dy and Gd compounds, with values J Dy-Fe3=-0.4 K and J Gd-Fe3=-0.25 K, by fitting to spin Hamiltonian simulations that consider the competing effects of intracluster interactions and the external applied magnetic field. In the uniaxial anisotropic {Fe3DyO2} case, a field-induced reorientation of the Fe3 and Dy spins from an antiparallel to a parallel orientation takes place at a threshold field (μ0H=4 T). In contrast, in isotropic {Fe3GdO2} this reorientation does not occur. © 2013 American Physical Society. | - |
dc.description.sponsorship | The financial support of Spanish MINECO Grant No. MAT2011-23791, the Alexander Von Humboldt Foundation (D.P.), and Aragonese DGA-IMANA E34 (cofunded by Fondo Social Europeo) and that received from European Union FEDER funds are also acknowledged. L.B.R. acknowledges the Spanish MINECO FPU 2010 grant. | - |
dc.publisher | American Physical Society | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.title | Field-induced internal Fe and Ln spin reorientation in butterfly {Fe3LnO2} (Ln = Dy and Gd) single-molecule magnets | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1103/PhysRevB.87.184403 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevB.87.184403 | - |
dc.date.updated | 2015-07-06T10:56:24Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.rights.license | http://creativecommons.org/licenses/by/3.0/ | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.contributor.funder | European Commission | - |
dc.contributor.funder | Diputación General de Aragón | - |
dc.contributor.funder | Alexander von Humboldt Foundation | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/100005156 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | With Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
Aparece en las colecciones: | (ICMA) Artículos |
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Field-induced.pdf | 1,26 MB | Adobe PDF | Visualizar/Abrir |
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