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Magnetic and thermal properties of 4f-3d ladder-type molecular compounds

hal.structure.identifierKamerlingh Onnes Laboratory
dc.contributor.authorEVANGELISTI, M.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorKAHN, Myrtil L.
hal.structure.identifierInstituto de Ciencia de Materiales de Aragón [Saragoza, España] [ICMA-CSIC]
dc.contributor.authorBARTOLOME, J.
hal.structure.identifierKamerlingh Onnes Laboratory
dc.contributor.authorDE JONGH, L. J.
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorMEYERS, C.
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorLEANDRI, J.
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorLEROYER, Y.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMATHONIÈRE, Corine
dc.date.created2003-03-27
dc.date.issued2003
dc.identifier.issn1098-0121
dc.description.abstractEnWe report on the low-temperature magnetic susceptibilities and specific heats of the isostructural spin-ladder molecular complexes L2[M(opba)]3⋅xDMSO⋅yH2O, hereafter abbreviated by L2M3 (where L=La, Gd, Tb, Dy, Ho and M=Cu, Zn). The results show that the Cu containing complexes (with the exception of La2Cu3) undergo long-range magnetic order at temperatures below 2 K, and that for Gd2Cu3 this ordering is ferromagnetic, whereas for Tb2Cu3 and Dy2Cu3 it is probably antiferromagnetic. The susceptibilities and specific heats of Tb2Cu3 and Dy2Cu3 above TC have been explained by means of a model taking into account nearest-as well as next-nearest-neighbor magnetic interactions. We show that the intraladder L-Cu interaction is the predominant one and that it is ferromagnetic for L=Gd, Tb, and Dy. For the cases of Tb, Dy, and Ho containing complexes, strong crystal field effects on the magnetic and thermal properties have to be taken into account. The magnetic coupling between the (ferromagnetic) ladders is found to be very weak and is probably of dipolar origin.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subject.enMagnetic materials
dc.subject.eno-phenylenebisoxamate
dc.subject.enChemical compounds
dc.subject.enHeat capacity
dc.subject.enMagnetic susceptibility
dc.title.enMagnetic and thermal properties of 4f-3d ladder-type molecular compounds
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevB.68.184405
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Autre [cond-mat.other]
dc.subject.halChimie/Matériaux
dc.identifier.arxivcond-mat/0303588
bordeaux.journalPhysical Review B: Condensed Matter and Materials Physics (1998-2015)
bordeaux.page184405 (14 p.)
bordeaux.volume68
bordeaux.issue18
bordeaux.peerReviewedoui
hal.identifierhal-00168698
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00168698v1
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