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dc.contributor.authorAeppli, G.
dc.contributor.authorLee, S.-H.
dc.contributor.authorBroholm, C.
dc.contributor.authorDiTusa, J.F.
dc.contributor.authorBao, W.
dc.date.accessioned2009-12-23T14:42:17Z
dc.date.available2009-12-23T14:42:17Z
dc.date.issued1996-04-15
dc.identifier.citationJournal of Applied Physics, 15 April 1996, vol.79, no.8, pt.2A, pp. 5023-8en_US
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/33726
dc.description.abstractMost magnets have long-range magnetic order when the thermal energy is less than the local magnetic exchange energy (T<|ΘCW|) effects such as reduced dimensionality and frustration, 1 however, can suppress the ordering transition and lead to unusual cooperative paramagnetic phases at low temperatures. We review neutron scattering experiments exploring such short-range-ordered phases in insulating transition metal oxides. We discuss (V1-xCrx)2O3, in which orbital fluctuations appear to limit spin correlations to within small “molecular” clusters, SrCr9pGa12-9pO19, in which geometrical frustration allows local antiferromagnetic constraints to be fulfilled without long-ranged order, and Y2BaNiO5, in which magnetic interactions occur only within chains of spins which are unable to order because of the Haldane effect. Emphasis is placed on the common features of exchange interactions in these oxides and the important role which magnetic neutron scattering has played in understanding the unusual magnetic phenomena.en_US
dc.language.isoen_USen_US
dc.publisherAmerican Institute of Physicsen_US
dc.subjectantiferromagnetic materialsen_US
dc.subjectexchange interactions (electron)en_US
dc.subjectinsulating transition metal oxidesen_US
dc.subject(V1-xCrx)2O3en_US
dc.subjectshort-range-ordered phasesen_US
dc.subjectparamagnetic materialsen_US
dc.subjectlocal antiferromagnetic constraintsen_US
dc.subjectspin correlationsen_US
dc.subjectSrCr9pGa12-9pO19en_US
dc.subjectreduced dimensionalityen_US
dc.subject(VCr)2O3en_US
dc.subjectorbital fluctuationsen_US
dc.subjectlong-range orderen_US
dc.subjectshort-range orderen_US
dc.subjectmagnetic transitionsen_US
dc.subjectgeometrical frustrationen_US
dc.subjectordering transitionen_US
dc.subjectcooperative paramagnetic phasesen_US
dc.subjectSr(CrGa)12O19en_US
dc.subjectY2BaNiO5en_US
dc.titleStrong magnetic fluctuations in transition metal oxidesen_US
dc.typeArticleen_US


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