High-temperature coulometric titration of La1-xSrxCoO3-δ : Evidence for the effect of electronic band structure on nonstoichiometry behavior
@article{Lankhorst1997HightemperatureCT, title={High-temperature coulometric titration of La1-xSrxCoO3-δ : Evidence for the effect of electronic band structure on nonstoichiometry behavior}, author={M.H.R. Lankhorst and H. J. Bouwmeester and H. Verweij}, journal={IEEE Journal of Solid-state Circuits}, year={1997}, volume={133}, pages={555-567} }
The equilibrium oxygen chemical potential and the partial energy and entropy of O2in perovskites La1−xSrxCoO3−δwere measured as a function ofδandxby high-temperature oxygen coulometric titration. An almost linear decrease in the oxygen chemical potential is observed with increasing net electron concentration 2δ−x. The observed behavior is interpreted to reflect the corresponding increase in the Fermi level on filling up states in a broad electron band with electrons induced by vacancy formation… CONTINUE READING
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