| Sm_2O_3－CeO_2－CUO三元系固线下相关系及电子型超导体Sm_（2－x |
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| 引用本文： | 庄卫东,乔芝郁,成琳,魏寿昆,王聪,梁敬魁,饶光辉.Sm_2O_3－CeO_2－CUO三元系固线下相关系及电子型超导体Sm_（2－x[J].中国稀土学报,1996(3). |
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| 作者姓名： | 庄卫东 乔芝郁 成琳 魏寿昆 王聪 梁敬魁 饶光辉 |
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| 作者单位： | 北京科技大学理化系，中国科学院物理研究所 |
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| 摘 要： | 用Ｘ射线衍射法测定了Ｓｍ２Ｏ３－ＣｅＯ２－ＣｕＯ三元系固线下相关系，样品是在空气气氛１０００℃烧结的。该体系含有一个三元固溶体Ｓｍ２－ｘＣｅｘＣｕＯ４－ｙ，２个三相共存区和３个两相共存区，测定了Ｓｍ２－ｘ·ＣｅｘＣｕＯ４－ｙ固溶体的固溶限（ｘ＝０．２０），氧含量和超导电性，讨论了晶体结构和氧含量对超导电性的影响。
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| 关 键 词： | Sm_2O_3－CeO_2－CuO，Sm_（2－x）Ce_xCuO_（4－y），电子型超导体，固线下相关系 |
Phase Relations in the Sm_2O_3-CeO_2-CuO Ternary System and the n-Type Superconductor Sm_(2-x)Ce_xCuO_(4-y) |
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| Zhuang Weidong, Qiao Zhiyu, Wei Shoukun, Cheng Lin, Wang Cong, Liang Jingkui, Rao Guanghui.Phase Relations in the Sm_2O_3-CeO_2-CuO Ternary System and the n-Type Superconductor Sm_(2-x)Ce_xCuO_(4-y)[J].Journal of the Chinese Rare Earth Society,1996(3). |
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| Authors: | Zhuang Weidong Qiao Zhiyu Wei Shoukun Cheng Lin Wang Cong Liang Jingkui Rao Guanghui |
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| Abstract: | The subsolidus phase relations of the Sm2O3-CeO2-CuO ternary system have been investigated by X-ray powder diffraction. The system can be divided into two triphase regions and three biphase regions. Solid solution Sm2-xCexCuO4-y is the only ternary phase in the system.The maximum solid solubility was confirmed to be x = 0. 2. The crystal structure, oxygen content and superconductivity of the solid solution Sm2-x CexCuO4-y have been investigated. |
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| Keywords: | Sm_2O_3-CeO_2-CuO Sm_(2-x)Ce_xCuO_(4-y) n-type superconductor Phase relation |
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