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dc.contributor.authorTing, Jen_AU
dc.contributor.authorKennedy, BJen_AU
dc.contributor.authorZhang, Zen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorJohannessen, Ben_AU
dc.contributor.authorJang, LYen_AU
dc.identifier.citationTing, J., Kennedy, B. J., Zhang, Z., Avdeev, M., Johannessen, B., & Jang, L. Y. (2010). Synthesis and structural studies of the transition-metal-doped Rh perovskites LaMn0.5Rh0.5O3 and LaCu0.5Rh0.5O3. Chemistry of Materials, 22(5), 1640-1646. doi:10.1021/cm902718ren_AU
dc.description.abstractThe two orthorhombic perovskites LaMn0.5Rh0.5O3 and LaCu0.5Rh0.5O3 have been characterized using X-ray absorption near edge structure (XANES) measurements and powder synchrotron X-ray and neutron diffraction. The Mn and Rh in LaMn0.5Rh0.5O3 are essentially trivalent and disordered onto the same crystallographic site. The absence of an appreciable Jahn−Teller (JT) distortion of the BO6 octahedra is a consequence of this disorder and large magnitude of the octahedral tilting. XANES measurements show that the Rh in LaCu0.5Rh0.5O3 has a valence state of around +3.5 as a consequence of extensive charge delocalization between the Cu and Rh cations, that are also disordered onto a single site. These two effects combine to further reduce the distortion of the octahedra in LaCu0.5Rh0.5O3 relative to that of LaMn0.5Rh0.5O3. © 2010, American Chemical Societyen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectDoped materialsen_AU
dc.subjectJahn-Teller effecten_AU
dc.subjectX-ray diffractionen_AU
dc.titleSynthesis and structural studies of the transition-metal-doped Rh perovskites LaMn0.5Rh0.5O3 and LaCu0.5Rh0.5O3.en_AU
dc.typeJournal Articleen_AU
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