VARIATIONS IN THE ELEMENTAL CONCENTRATION IN SURFACE REGION OF THE YBCO FILMS AND INTERACTIONS OF THE FILMS WITH SUBSTRATE IN HEATING PROCESS STUDIED By ANGULAR DEPENDENT XPS
文献类型：期刊论文
| 作者 | Zhao Liangzhong; Guo Zhongcheng; Liang Zhenhua; Hu Yuxiu; Liu Hanfan |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 1991 |
| 卷号 | 7期号:3页码:305-310 |
| 关键词 | Angular Dependent Xps Ybco Surface Chemistry |
| ISSN号 | 1000-6818 |
| DOI | 10.3866/PKU.WHXB19910309 |
| 英文摘要 | Variations of the elemental concentration of the YBCO films prepared by MOD method, diffusion and interactions between the films and ZrO2 substrate have been studied by means of angular dependent XPS technique, A drastic change in the stoichiometry of YBCO films in surface region at different heating steps have been observed, Fur example, Cu2+ enrichment and Ba2+-deficieney occur in surface region For both thin (similar to 0.1 mu m) and thick (1 similar to 1.5 mu m) films after heating the samples at about 530 degrees similar to 720 degrees C. However, above 800 degrees C Cu2+-deficiency is observed clearly, and the; higher the temperature, the more the Cu2+-deficiency, In addition, the extent of interdiffusion and interaction also increases with increasing temperature. After heating at 800 degrees C diffusion of Ba3+ from the thin film into ZrOz substrate is detected, and the valence of copper is +2. Whereas, with a heating temperature of 950 degrees C, a Ba3+-rich layer on the substrate has been formed, and the valence of copper on the layer is mainly +1, The results also show that degradation of the superconducting property caueed by the diffusion and interaction is more severe for the thin film than for thick film. |
| 语种 | 英语 |
| WOS记录号 | WOS:000207573500009 |
| 出版者 | PEKING UNIV PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/72561]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhao Liangzhong |
| 作者单位 | Acad Sinica, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao Liangzhong,Guo Zhongcheng,Liang Zhenhua,et al. VARIATIONS IN THE ELEMENTAL CONCENTRATION IN SURFACE REGION OF THE YBCO FILMS AND INTERACTIONS OF THE FILMS WITH SUBSTRATE IN HEATING PROCESS STUDIED By ANGULAR DEPENDENT XPS[J]. ACTA PHYSICO-CHIMICA SINICA,1991,7(3):305-310. |
| APA | Zhao Liangzhong,Guo Zhongcheng,Liang Zhenhua,Hu Yuxiu,&Liu Hanfan.(1991).VARIATIONS IN THE ELEMENTAL CONCENTRATION IN SURFACE REGION OF THE YBCO FILMS AND INTERACTIONS OF THE FILMS WITH SUBSTRATE IN HEATING PROCESS STUDIED By ANGULAR DEPENDENT XPS.ACTA PHYSICO-CHIMICA SINICA,7(3),305-310. |
| MLA | Zhao Liangzhong,et al."VARIATIONS IN THE ELEMENTAL CONCENTRATION IN SURFACE REGION OF THE YBCO FILMS AND INTERACTIONS OF THE FILMS WITH SUBSTRATE IN HEATING PROCESS STUDIED By ANGULAR DEPENDENT XPS".ACTA PHYSICO-CHIMICA SINICA 7.3(1991):305-310. |
入库方式： OAI收割
来源：化学研究所
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