Floating zone crystal growth and magnetic properties of bilayer manganites Pr(Sr1−xCax)(2)Mn2O7

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dc.contributor.authorDeng, Gen_AU
dc.contributor.authorThiyagarajan, Ren_AU
dc.contributor.authorRadheep, DMen_AU
dc.contributor.authorPomjakushina, Een_AU
dc.contributor.authorMedarde, Men_AU
dc.contributor.authorKrzton-Maziopa, Aen_AU
dc.contributor.authorWang, Sen_AU
dc.contributor.authorArumugam, Sen_AU
dc.contributor.authorConder, Ken_AU
dc.date.accessioned2014-05-20T00:43:35Zen_AU
dc.date.available2014-05-20T00:43:35Zen_AU
dc.date.issued2012-08-15en_AU
dc.date.statistics2014-05-20en_AU
dc.description.abstractSingle crystals of a bilayer manganite series Pr(Sr1-xCax)(2)Mn2O7 (x=0, 0.4, 0.9, 1) have been grown using traveling solvent floating zone technique under various oxygen partial pressure. It was found that the crystal quality is very sensitive to oxygen partial pressure applied during growth and highly Ca doped crystals could only be obtained at elevated oxygen pressure. Whereas a secondary phase was observed for PrCa2Mn2O7 grown at oxygen partial pressure below 1 bar, a pure phase can be achieved at 8 bar of oxygen. This was evidenced studying composition mapping by X-ray fluorescence spectroscopy. X-ray Laue diffraction and X-ray powder diffraction have been carried out on the samples for the quality check of the grown crystals. Susceptibility measurements indicate that all samples are antiferromagnetic at low temperature. They also reveal the existence of two anomalies at similar to 320 K and 370 K, which coincide with the charge ordering/orbital ordering transitions described in the literature. © 2012, Elsevier Ltd.en_AU
dc.identifier.citationDeng, G. C., Thiyagarajan, R., Radheep, D. M., Pomjakushina, E., Medarde, M., Krzton-Maziopa, A., Wang, S., Arumugam, S., & Conder, K. (2012). Floating zone crystal growth and magnetic properties of bilayer manganites Pr(Sr1−xCax)(2)Mn2O7. Journal of Crystal Growth, 353, 25-30. doi:10.1016/j.jcrysgro.2012.04.024en_AU
dc.identifier.govdoc4453en_AU
dc.identifier.issn0022-0248en_AU
dc.identifier.journaltitleJournal of Crystal Growthen_AU
dc.identifier.pagination25-30en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jcrysgro.2012.04.024en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5617en_AU
dc.identifier.volume353en_AU
dc.language.isoenen_AU
dc.publisherElsevier Science BVen_AU
dc.subjectZone meltingen_AU
dc.subjectCrystal growthen_AU
dc.subjectMagnetic materialsen_AU
dc.subjectX-ray fluorescence analysisen_AU
dc.subjectMonocrystalsen_AU
dc.subjectDiffractionen_AU
dc.titleFloating zone crystal growth and magnetic properties of bilayer manganites Pr(Sr1−xCax)(2)Mn2O7en_AU
dc.typeJournal Articleen_AU
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