Structural and magnetic properties of RTiNO2 (R=Ce, Pr, Nd) perovskite nitride oxides

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dc.contributor.authorPorter, SHen_AU
dc.contributor.authorHuang, ZGen_AU
dc.contributor.authorCheng, ZXen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorChen, ZXen_AU
dc.contributor.authorDou, SXen_AU
dc.contributor.authorWoodward, PMen_AU
dc.date.accessioned2021-02-04T00:21:26Zen_AU
dc.date.available2021-02-04T00:21:26Zen_AU
dc.date.issued2015-03-01en_AU
dc.date.statistics2021-01-19en_AU
dc.description.abstractNeutron powder diffraction indicates that CeTiNO2 and PrTiNO2 crystallize with orthorhombic Pnma symmetry (Ce: a=5.5580(5), b=7.8369(7), and c=5.5830(4) Å; Pr: a=5.5468(5), b=7.8142(5), and c=5.5514(5) Å) as a result of a–b+a– tilting of the titanium-centered octahedra. Careful examination of the NPD data, confirms the absence of long range anion order in both compounds, while apparent superstructure reflections seen in electron diffraction patterns provide evidence for short range anion order. Inverse magnetic susceptibility plots reveal that the RTiNO2 (R=Ce, Pr, Nd) compounds are paramagnetic with Weiss constants that vary from −28 to −42 K. Effective magnetic moments for RTiNO2 (R=Ce, Pr, Nd) are 2.43 μB, 3.63 μB, and 3.47 μB, respectively, in line with values expected for free rare-earth ions. Deviations from Curie–Weiss behavior that occur below 150 K for CeTiNO2 and below 30 K for NdTiNO2 are driven by magnetic anisotropy, spin–orbit coupling, and crystal field effects. © 2015 Elsevier Inc.en_AU
dc.identifier.citationPorter, S. H., Huang, Z., Cheng, Z., Avdeev, M., Chen, Z., Dou, S., Woodward, P. M. (2015). Structural and magnetic properties of RTiNO2 (R=Ce, Pr, Nd) perovskite nitride oxides. Journal of Solid State Chemistry, 226, 279-285. doi:10.1016/j.jssc.2015.01.023en_AU
dc.identifier.issn0022-4596en_AU
dc.identifier.journaltitleJournal of Solid State Chemistryen_AU
dc.identifier.pagination279-285en_AU
dc.identifier.urihttps://doi.org/10.1016/j.jssc.2015.01.023en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10306en_AU
dc.identifier.volume226en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectPerovskitesen_AU
dc.subjectNitridesen_AU
dc.subjectOxidesen_AU
dc.subjectRare earthsen_AU
dc.subjectMagnetismen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectOrthorhombic latticesen_AU
dc.subjectMagnetic momentsen_AU
dc.subjectL-S couplingen_AU
dc.subjectCrystal fielden_AU
dc.subjectAnisotropyen_AU
dc.subjectTitaniumen_AU
dc.subjectTransition elementsen_AU
dc.titleStructural and magnetic properties of RTiNO2 (R=Ce, Pr, Nd) perovskite nitride oxidesen_AU
dc.typeJournal Articleen_AU
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