Anisotropic three-dimensional magnetism in CaFe2As2

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dc.contributor.authorMcQueeney, RJen_AU
dc.contributor.authorDiallo, SOen_AU
dc.contributor.authorAntropov, VPen_AU
dc.contributor.authorSamolyuk, GDen_AU
dc.contributor.authorBroholm, Cen_AU
dc.contributor.authorNi, Nen_AU
dc.contributor.authorNandi, Sen_AU
dc.contributor.authorYethiraj, Men_AU
dc.contributor.authorZarestky, JLen_AU
dc.contributor.authorPulikkotil, JJen_AU
dc.contributor.authorKreyssig, Aen_AU
dc.contributor.authorLumsden, MDen_AU
dc.contributor.authorHarmon, BNen_AU
dc.contributor.authorCanfield, PCen_AU
dc.contributor.authorGoldman, AIen_AU
dc.date.accessioned2009-08-04T01:09:19Zen_AU
dc.date.accessioned2010-04-30T05:06:21Zen_AU
dc.date.available2009-08-04T01:09:19Zen_AU
dc.date.available2010-04-30T05:06:21Zen_AU
dc.date.issued2008-11-28en_AU
dc.date.statistics2008-11-28en_AU
dc.description.abstractInelastic neutron scattering measurements of the magnetic excitations in CaFe2As2 indicate that the spin wave velocity in the Fe layers is exceptionally large and similar in magnitude to the cuprates. However, the spin wave velocity perpendicular to the layers is at least half as large that in the layer, so that the magnetism is more appropriately categorized as anisotropic three-dimensional, in contrast to the two-dimensional cuprates. Exchange constants derived from band structure calculations predict spin wave velocities that are consistent with the experimental data. © 2008, American Physical Societyen_AU
dc.identifier.articlenumber227205en_AU
dc.identifier.citationMcQueeney, R. J., Diallo, S. O., Antropov, V. P., Samolyuk, G. D., Broholm, C., Ni, N., Nandi, S., Yethiraj, M., Zarestky, J. L., Pulikkotil, J. J., Kreyssig, A., Lumsden, M. D., Harmon, B. N., Canfield, P. C., & Goldman, A. I.(2008). Anisotropic three-dimensional magnetism in CaFe2As2. Physical Review Letters, 101(22), 227205. doi:10.1103/PhysRevLett.101.227205en_AU
dc.identifier.govdoc1408en_AU
dc.identifier.issn0031-9007en_AU
dc.identifier.issue22en_AU
dc.identifier.journaltitlePhysical Review Lettersen_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.101.227205en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1590en_AU
dc.identifier.volume101en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectSuperconductivityen_AU
dc.subjectMagnetismen_AU
dc.subjectAnisotropyen_AU
dc.subjectInelastic scatteringen_AU
dc.subjectIronen_AU
dc.subjectCalciumen_AU
dc.titleAnisotropic three-dimensional magnetism in CaFe2As2en_AU
dc.typeJournal Articleen_AU
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