Development of the magnetic excitations of charge-stripe ordered La2-x Sr (x) NiO4 on doping towards checkerboard charge order

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dc.contributor.authorFreeman, PGen_AU
dc.contributor.authorGiblin, SRen_AU
dc.contributor.authorHradil, Ken_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorPrabhakaran, Den_AU
dc.date.accessioned2015-01-28T04:51:59Zen_AU
dc.date.available2015-01-28T04:51:59Zen_AU
dc.date.issued2013-05-01en_AU
dc.date.statistics2014-07-03en_AU
dc.description.abstractThe magnetic excitation spectrums of charge stripe ordered La2-x Sr (x) NiO4 x = 0.45 and x = 0.4 were studied by inelastic neutron scattering. We found the magnetic excitation spectrum of x = 0.45 from the ordered Ni2+ S = 1 spins to match that of checkerboard charge ordered La1.5Sr0.5NiO4. The distinctive asymmetry in the magnetic excitations above 40meV was observed for both doping levels, but an additional ferromagnetic mode was observed in x = 0.45 and not in the x = 0.4. We discuss the origin of crossover in the excitation spectrum between x = 0.45 and x = 0.4 with respect to discommensurations in the charge stripe structure. © 2013, Springer.en_AU
dc.identifier.citationFreeman, P. G., Giblin, S. R., Hradil, K., Mole, R. A., & Prabhakaran, D. (2013). Development of the magnetic excitations of charge-stripe ordered La2-x Sr (x) NiO4 on doping towards checkerboard charge order. Journal of the Korean Physical Society, 62(10), 1453-1457. doi:10.3938/jkps.62.1453en_AU
dc.identifier.govdoc5077en_AU
dc.identifier.issn0374-4884en_AU
dc.identifier.issue10en_AU
dc.identifier.journaltitleJournal of the Korean Physical Societyen_AU
dc.identifier.pagination1453-1457en_AU
dc.identifier.urihttp://dx.doi.org/10.3938/jkps.62.1453en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6124en_AU
dc.identifier.volume62en_AU
dc.language.isoenen_AU
dc.publisherSpringeren_AU
dc.subjectMagnetismen_AU
dc.subjectNeutronsen_AU
dc.subjectExcitationen_AU
dc.subjectScatteringen_AU
dc.subjectSpinen_AU
dc.subjectFerromagnetismen_AU
dc.titleDevelopment of the magnetic excitations of charge-stripe ordered La2-x Sr (x) NiO4 on doping towards checkerboard charge orderen_AU
dc.typeJournal Articleen_AU
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