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Vanadium V3+, V4+, and V5+ in vanadates

Spectra for Vanadium (V)

Line plots of Vanadium L2,3 EELS edges for V3+ to V5+ (opens larger version)
V L3 and L2 edges for different V formal oxidation states. The formal oxidation state is best tracked by the relative energy shift as the branching ratio is strongly affected by plural scattering from the valence losses and the presence of the O-K edge at ~528 eV


By: Lena Fitting Kourkoutis @ Cornell University

Microscope: FEI Tecnai F20

Reference: L. Fitting Kourkoutis, Y. Hotta, T. Susaki, H. Y. Hwang, and D. A. Muller, “Nanometer Scale Electronic Reconstraction at the Interface between LaVO3 and LaVO4, Phys. Rev. Lett. 97, 256803 (2006)