Abstract
The analysis of superconducting sample by using a sputtered neutral particle mass spectrometer demonstrates that Ca and Ba elements are oxidative, Cu is non-oxidative, Hg is mainly in metallic form near the surface and becomes oxidative far from the surface, and Pb is concentrated on the surface. The analysis also reveals that the highly concentrative hydrocarbon and water impurities are mixed into the sample during the preparation and conservation.
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References
Phtilin, S. N., Autipov, E. V., Chmaisson, O.,et al., Superconductivity at 94 K in HgBa2CuO4+δ,Nature (London), 1993, 362: 226.
Schilling, A., Cantoni, M., Guo, J. D.,et al., Superconductivity above 130 K in the Hg−Ba−Ca−Cu−O system,Nature (London), 1993, 363: 56.
Xu Qinlun, Tang, T. B., Chen Zhaojia, The synthesis and thermal stability of superconducting HgBa2CaCu2O6+δ,Supercond. Sci. Technol., 1994, 7: 828.
Tang Zhengqing, Qi Jianping, A mass spectrometric study of sputtered neutrals,Vacuum Science and Technology (in Chinese), 1990, 10: 99.
Coburn, J. W., Kay, E., A new technique for the elemental analysis of thin surface layers of solid,Applied Physics Letter, 1971, 19: 350.
Lu Jiahe, Chen Changyan (eds.),Surface Analysis Techniques (in Chinese), Beijing: Electronic Industry Press, 1987, 340–344.
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Mao, F., Shao, L. Elemental composition analysis of superconducting Hg0.67Pb0.34Ba2Ca2Cu3O8+δ . Sci. China Ser. E-Technol. Sci. 40, 312–316 (1997). https://doi.org/10.1007/BF02916606
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DOI: https://doi.org/10.1007/BF02916606