Ferrimagnetic Heisenberg chain; influence of a random exchange interaction
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Ferrimagnetic Heisenberg chain; influence of a random exchange interaction

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Ferrimagnetic Heisenberg chain; influence of a random exchange interaction

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dc.contributor.author Drillon, M.
dc.contributor.author Coronado Miralles, Eugenio
dc.contributor.author Beltrán Porter, Daniel
dc.contributor.author Georges, R.
dc.date.accessioned 2010-06-08T11:06:04Z
dc.date.available 2010-06-08T11:06:04Z
dc.date.issued 1985
dc.identifier.uri http://hdl.handle.net/10550/12922
dc.language.iso en en
dc.relation http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=JAPIAU000057000008003353000001&idtype=cvips&prog=normal&doi=10.1063/1.335094 en
dc.source DRILLON, M. ; CORONADO, E. ; BELTRAN, D. ; GEORGES, R. Ferrimagnetic Heisenberg chain; influence of a random exchange interaction. En: Journal of Applied Physics, 1985, vol. 57, no. 8 en
dc.subject Exchange Interactions ; Ferrimagnetic Materials ; Chains ; Heisenberg Model ; Amorphous State ; Chemical Bonds ; Magnetic Susceptibility ; Cobalt Compounds ; Nickel Compounds ; Hydrates ; Edta ; Ferrimagnetism ; Magnetic Properties en
dc.title Ferrimagnetic Heisenberg chain; influence of a random exchange interaction en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::FÍSICA en
dc.identifier.doi 10.1063/1.335094 en
dc.description.abstractenglish We report on the magnetic behavior of ‘‘rigid’’ ferrimagnetic chains isolated in bimetallic complexes of the EDTA and ‘‘flexible’’ ones obtained in the amorphous variety. As shown by LAXS, the only noteworthy difference in the amorphous state is the random distribution of bond angles between nearest neighbors within chains. The ‘‘rigid’’ bimetallic chains in CoNi(EDTA)6H2O are described in terms of Heisenberg model with an exchange coupling J=−7.5 K. The behavior of the amorphous variety somewhat differs, following the law X=AT−0.8 typical of REHAC. A classical spin chain model involving a J distribution and alternating g factors allows to explain successfully the temperature dependence of the susceptibility. en
dc.description.private Daniel.Beltran@uv.es en

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