Oxidation State of the Unusual Rare Earth (R= Ce, Pr and Tb) in Double-Layer High-Tc Superconductors
نویسندگان
چکیده
X-ray absorption and magnetization experiments are used to describe the oxidation states of the rare earth ions R=Ce, PI and Tb in the double layer high-Tc superconducting series RBa2Cu307 and Pb2Sr2R1-,CaXCu3O8. We obtained the same oxidation states for the rare earths in these two classes of compounds, namely, R=Ce tetravalent and R=Pr and Tb trivalent.
منابع مشابه
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