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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.citation	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.identifier.uri	http://hdl.handle.net/10550/12995
dc.description.abstract	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_US
dc.language.iso	en	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	journal article	es_ES
dc.subject.unesco	UNESCO::FÍSICA::Química física	en
dc.identifier.doi	10.1063/1.471983	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JCPSA6000105000016006892000001&idtype=cvips&prog=normal&doi=10.1063/1.471983	en