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Citation: Qiu Li-Mei, Liu Fen, Zhao Liang-Zhong. Synthesis of K-Pb-Tl-O Complex Oxides and XPS Study on Their Electronic Structure[J]. Acta Physico-Chimica Sinica, ;2002, 18(07): 633-635. doi: 10.3866/PKU.WHXB20020713 shu

Synthesis of K-Pb-Tl-O Complex Oxides and XPS Study on Their Electronic Structure

1.
Institute of Chemistry,Chinese Academy of Sciences,Beijing　100080

Received Date: 19 November 2001
Available Online: 15 July 2002

Crystals of K-Pb-Tl-O complex oxides were electrodeposited on the anode from molten salts.The resulting crystals show multilayer structure with resolvable layer thicknesses in nonameters.XPS was used to analyze the crystals and the related compounds.The experimental results indicate that Pb and Tl in K-Pb-Tl-O oxides are in single high valence states.However,their core level binding energies are lower than that of the corresponding low valence non-conducting compounds.This abnormal phenomenon has been explained by using the extra-atomic relaxation effect.In addition,the relationship between the valence electronic structure and the conductivity has been discussed.
- K-Pb-Tl-O;XPS;Electronic structure
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