High‐nuclearity mixed‐valence magnetic clusters : A general solution of the double exchange problem
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High‐nuclearity mixed‐valence magnetic clusters : A general solution of the double exchange problem

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High‐nuclearity mixed‐valence magnetic clusters : A general solution of the double exchange problem

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dc.contributor.author Borrás Almenar, Juan José
dc.contributor.author Clemente Juan, Juan Modesto
dc.contributor.author Coronado Miralles, Eugenio
dc.contributor.author Palii, Andrew
dc.contributor.author Tsukerblat, Boris
dc.contributor.author Georges, R.
dc.date.accessioned 2010-06-18T08:07:35Z
dc.date.available 2010-06-18T08:07:35Z
dc.date.issued 1996
dc.identifier.uri http://hdl.handle.net/10550/12995
dc.language.iso en en
dc.relation http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JCPSA6000105000016006892000001&idtype=cvips&prog=normal&doi=10.1063/1.471983 en
dc.source BORRÁS ALMENAR, J.J. ; CLEMENTE, J.M. ; CORONADO, E. ; PALII, A.V. ; TSUKERBLAT, B.S. ; GEORGES, R. High‐nuclearity mixed‐valence magnetic clusters: A general solution of the double exchange problem en
dc.subject Exchange Interactions ; Molecular Clusters ; Matrix Elements ; Electron Transfer ; Localized States ; Spin−Lattice Relaxation ; Mixed−Valence Compounds en
dc.title High‐nuclearity mixed‐valence magnetic clusters : A general solution of the double exchange problem en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::FÍSICA::Química física en
dc.identifier.doi 10.1063/1.471983 en
dc.description.abstractenglish We report here a general solution of the double‐exchange problem in the high‐nuclearity mixed valence systems containing arbitrary number P of the electrons delocalized over the network of N (P<N) localized spins. The developed approach is based on the successive (chainlike) spin‐coupling scheme and takes full advantage from the quantum angular momentum theory. In the framework of this approach the closed‐form analytical expressions are deduced for the matrix elements of the double exchange interaction, two‐electron transfer, and three‐center interaction that can be referred to as the potential exchange transfer. For the arbitrary nuclearity mixed‐valence systems the matrix elements of all named interactions are expressed in terms of all relevant spin quantum numbers and 6j symbols and do not contain higher order recoupling coefficients. We describe also the combined approach taking into account both angular momentum consideration and advantages of point symmetry adapted basis set. en
dc.description.private borrasj@uv.es , clemente@uv.es ; coronado@uv.es ; palii@uv.es ; tsuker@uv.es en

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