Key role of Bismuth in the magnetoelastic transitions of Ba3BiIr2O9 and Ba3BiRu2O9 as revealed by chemical doping

Simple item page
dc.contributor.authorBlanchard, PERen_AU
dc.contributor.authorHuang, ZXen_AU
dc.contributor.authorKennedy, BJen_AU
dc.contributor.authorLiu, Sen_AU
dc.contributor.authorMiiller, Wen_AU
dc.contributor.authorReynolds, EMen_AU
dc.contributor.authorZhou, QDen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorZhang, ZMen_AU
dc.contributor.authorAitken, JBen_AU
dc.contributor.authorCowie, BCCen_AU
dc.contributor.authorJang, LYen_AU
dc.contributor.authorTan, TTen_AU
dc.contributor.authorLi, Sen_AU
dc.contributor.authorLing, CDen_AU
dc.date.accessioned2016-06-20T00:21:32Zen_AU
dc.date.available2016-06-20T00:21:32Zen_AU
dc.date.issued2013-12-24en_AU
dc.date.statistics2016-06-20en_AU
dc.description.abstractThe key role played by bismuth in an average intermediate oxidation state in the magnetoelastic spin-gap compounds Ba3BiRu2O9 and Ba3BiIr2O9 has been confirmed by systematically replacing bismuth with La3+ and Ce4+. Through a combination of powder diffraction (neutron and synchrotron), X-ray absorption spectroscopy, and magnetic properties measurements, we show that Ru/Ir cations in Ba3BiRu2O9 and Ba3BiIr2O9 have oxidation states between +4 and +4.5, suggesting that Bi cations exist in an unusual average oxidation state intermediate between the conventional +3 and +5 states (which is confirmed by the Bi L3-edge spectrum of Ba3BiRu2O9). Precise measurements of lattice parameters from synchrotron diffraction are consistent with the presence of intermediate oxidation state bismuth cations throughout the doping ranges. We find that relatively small amounts of doping (∼10 at%) on the bismuth site suppress and then completely eliminate the sharp structural and magnetic transitions observed in pure Ba3BiRu2O9 and Ba3BiIr2O9, strongly suggesting that the unstable electronic state of bismuth plays a critical role in the behavior of these materials. © 2013 American Chemical Society.en_AU
dc.identifier.citationBlanchard, P. E. R., Huang, Z., Kennedy, B. J., Liu, S., Miiller, W., Reynolds, E., Zhou, Q., Avdeev. M., Zhang, Z., Aitken, J. B., Cowie, B. C. C., Jang, L. Y., Tan T. T., Li. S., & Ling, C. D. (2013). Key role of Bismuth in the magnetoelastic transitions of Ba3BiIr2O9 and Ba3BiRu2O9 as revealed by chemical doping. Inorganic Chemistry, 53(2), 952-960. doi:10.1021/ic4023745en_AU
dc.identifier.govdoc6720en_AU
dc.identifier.issn1520-510Xen_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleInorganic Chemistryen_AU
dc.identifier.pagination952-960en_AU
dc.identifier.urihttps://doi.org/10.1021/ic4023745en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7038en_AU
dc.identifier.volume53en_AU
dc.language.isoenen_AU
dc.publisherAmerica Chemical Societyen_AU
dc.subjectOxidationen_AU
dc.subjectMagnetic fieldsen_AU
dc.subjectBismuthen_AU
dc.subjectNeutronsen_AU
dc.subjectSynchrotronsen_AU
dc.subjectSpectroscopyen_AU
dc.titleKey role of Bismuth in the magnetoelastic transitions of Ba3BiIr2O9 and Ba3BiRu2O9 as revealed by chemical dopingen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles