High oxygen pressure single crystal growth of highly Ca-doped spin ladder compound Sr(14-x)Ca(x)Cu(24)O(41) (x > 12)

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dc.contributor.authorDeng, Gen_AU
dc.contributor.authorRadheep, DMen_AU
dc.contributor.authorThiyagarajan, Ren_AU
dc.contributor.authorPomjakushina, Een_AU
dc.contributor.authorWang, Sen_AU
dc.contributor.authorNikseresht, Nen_AU
dc.contributor.authorArumugam, Sen_AU
dc.contributor.authorConder, Ken_AU
dc.date.accessioned2011-12-13T21:49:26Zen_AU
dc.date.available2011-12-13T21:49:26Zen_AU
dc.date.issued2011-07-15en_AU
dc.date.statistics2011-12-14en_AU
dc.description.abstractLarge size high-quality Ca-doped Sr14−xCaxCu24O41 (x=12.2, 12.6 and 13) spin ladder superconducting single crystals were grown using a modified mirror floating zone furnace with oxygen pressure up to 35 bar. The qualities of the as-grown single crystals were confirmed by polarized optical microscopy, neutron diffraction and X-ray diffraction methods. The sample compositions and homogeneity were measured using micro-X-ray fluorescence spectroscopy. The lattice parameters of each sample have been refined using the Rietveld method. The oxygen stoichiometry measurements which were performed by hydrogen reduction/thermogravimetry method show that all the three samples are slightly oxygen deficient even though high oxygen pressure was applied during growth. The high oxygen pressure is indispensible for growing highly Ca-doped Sr14−xCaxCu24O41 single crystals. The susceptibility was measured along c-axis for all three compositions, fitting well with the one dimensional dimer model, consistent with the reported values of undoped Sr14Cu24O41 parent compounds.(C) 2011 Elsevier B.V.en_AU
dc.identifier.citationDeng, G.C., Radheep, D.M., Thiyagarajan, R., Pomjakushina, E., Wang, S., Nikseresht, N., Arumugam, S., Conder, K. (2011). High oxygen pressure single crystal growth of highly Ca-doped spin ladder compound Sr(14-x)Ca(x)Cu(24)O(41) (x > 12). Journal of Crystal Growth, 327(1), 182-188. doi:10.1016/j.jcrysgro.2011.04.010en_AU
dc.identifier.govdoc3805en_AU
dc.identifier.issn0022-0248en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleJournal of Crystal Growthen_AU
dc.identifier.pagination182-188en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jcrysgro.2011.04.010en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3940en_AU
dc.identifier.volume327en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCupratesen_AU
dc.subjectSpinen_AU
dc.subjectZone meltingen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectOptical microscopyen_AU
dc.subjectFluorescence spectroscopyen_AU
dc.titleHigh oxygen pressure single crystal growth of highly Ca-doped spin ladder compound Sr(14-x)Ca(x)Cu(24)O(41) (x > 12)en_AU
dc.typeJournal Articleen_AU
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