Strong magnetic fluctuations in transition metal oxides

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dc.contributor.author Aeppli, G.
dc.contributor.author Lee, S.-H.
dc.contributor.author Broholm, C.
dc.contributor.author DiTusa, J.F.
dc.contributor.author Bao, W.
dc.date.accessioned 2009-12-23T14:42:17Z
dc.date.available 2009-12-23T14:42:17Z
dc.date.issued 1996-04-15
dc.identifier.citation Journal of Applied Physics, 15 April 1996, vol.79, no.8, pt.2A, pp. 5023-8 en
dc.identifier.uri http://jhir.library.jhu.edu/handle/1774.2/33726
dc.description.abstract Most 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
dc.description.provenance Submitted by Susan Vazakas (svazakas@jhu.edu) on 2009-12-16T18:01:55Z No. of bitstreams: 1 Broholm Strong 1996.pdf: 201821 bytes, checksum: ef277fcbf19f75440bb6777836927e3e (MD5) en
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dc.description.provenance Submitted by Susan Vazakas (svazakas@jhu.edu) on 2009-12-21T18:56:36Z No. of bitstreams: 1 Broholm Strong 1996.pdf: 201821 bytes, checksum: ef277fcbf19f75440bb6777836927e3e (MD5) en
dc.description.provenance Rejected by David Reynolds(davidr@jhu.edu), reason: This is one of the items that is out of scope. on 2009-12-16T20:01:17Z (GMT) en
dc.language.iso en_US en
dc.publisher American Institute of Physics en
dc.subject antiferromagnetic materials en
dc.subject exchange interactions (electron) en
dc.subject insulating transition metal oxides en
dc.subject (V1-xCrx)2O3 en
dc.subject short-range-ordered phases en
dc.subject paramagnetic materials en
dc.subject local antiferromagnetic constraints en
dc.subject spin correlations en
dc.subject SrCr9pGa12-9pO19 en
dc.subject reduced dimensionality en
dc.subject (VCr)2O3 en
dc.subject orbital fluctuations en
dc.subject long-range order en
dc.subject short-range order en
dc.subject magnetic transitions en
dc.subject geometrical frustration en
dc.subject ordering transition en
dc.subject cooperative paramagnetic phases en
dc.subject Sr(CrGa)12O19 en
dc.subject Y2BaNiO5 en
dc.title Strong magnetic fluctuations in transition metal oxides en
dc.type Article en

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