| XPS study of Ba_(0.6)K_(0.4)BiO_3 |
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| 作者姓名： | Norton Michael L. |
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| 作者单位： | Department of Chemistry Marshall University，Huntington，WV 25755-2520，USA |
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| 基金项目： | Project supported by National Science Foundation of U.S.A.(grant No.CHE-9215173)，National Center for R & D on superconductivity of China. |
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| 摘 要： | Single crystal Ba_(0.6)K_(0.4)BiO_3 was studied by using XPS.The results show that there isno evidence for the presence of Bi~(5+) in single crystal of Ba_(0.6)K_(0.4)BiO_3;instead,there is evidence forthe presence of mixed valent Bi~(3+) and Bi~((3+)-δ).Moreover,the O1s XPS results suggest the presenceof mixed valent O~(2-) and O~(1-),and the valence band spectrum suggests the high degree of covalencyfor Bi—O bonds.
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XPS study of Ba0.6K0.4BiO3 |
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| Norton,Michael L..XPS study of Ba_(0.6)K_(0.4)BiO_3[J].Chinese Journal of Chemistry,1993,11(5):425-428. |
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| Authors: | Liang-Zhong Zhao Michael L Norton |
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| Abstract: | Single crystal Ba0.6K0.4BiO3 was studied by using XPS. The results show that there is no evidence for the presence of Bi5+ in single crystal of Ba0.6K0.4BiO3; instead, there is evidence for the presence of mixed valent Bi3+ and Bi(3+)-δ. Moreover, the Ols XPS results suggest the presence of mixed valent O2? and O1?, and the valence band spectrum suggests the high degree of covalency for Bi—O bonds. |
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