Temperature evolution of structural and electrical property for Sr7Mn4O15 at high temperature
文献类型：期刊论文
| 作者 | Yang, X. M.1; Xie, Weimei1; Gu, X. M.1; Zhou, G. T.1; Lv, Kai1; Cheng, G. F.2; Zhang, A. M.3; Zhang, F. M.1; Wu, X. S.1 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2017-03-30 |
| 卷号 | 699页码:230-234 |
| 关键词 | Sr7Mn4O15 ceramic in-situ X-ray diffraction Electronic transport property Negative Temperature Coefficient (NTC) Thermistor ceramics |
| 英文摘要 | Temperature dependence of structural evolution for single phase Sr7Mn4O15 is determined using the in situ X-ray diffraction with Rietveld refinements in the temperature range of 300-1200 K. It's found that thermal expansion of Sr7Mn4O15 lattice parameters increase linearly with temperature. The structure of face-sharing clusters prefers expansion in the transverse, and corner-sharing clusters prefers the stretch in the longitudinal. Resistance decreases sharply with increasing temperature at high temperature, which means that the Sr7Mn4O15 is a well candidate in applications as negative temperature coefficient thermistor. Based on the fitted atomic parameters given from Rietveld refinements, temperature dependent band gap of Sr7Mn4O15 is estimated with first principle calculation, which exhibits a dramatic reduction from 1.141 eV to 0.349 eV with increasing the temperature. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | AUGMENTED-WAVE METHOD ; OXIDE ; THERMISTORS ; CERAMICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000393727500032 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23489]  |
| 专题 | 上海硅酸盐研究所_无机材料分析测试中心_期刊论文 |
| 作者单位 | 1.Nanjing Univ, Sch Phys, Collaborat Innovat Ctr Adv Microstruct, Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai, Peoples R China 3.Hohai Univ, Coll Sci, Nanjing 210098, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, X. M.,Xie, Weimei,Gu, X. M.,et al. Temperature evolution of structural and electrical property for Sr7Mn4O15 at high temperature[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,699:230-234. |
| APA | Yang, X. M..,Xie, Weimei.,Gu, X. M..,Zhou, G. T..,Lv, Kai.,...&Wu, X. S..(2017).Temperature evolution of structural and electrical property for Sr7Mn4O15 at high temperature.JOURNAL OF ALLOYS AND COMPOUNDS,699,230-234. |
| MLA | Yang, X. M.,et al."Temperature evolution of structural and electrical property for Sr7Mn4O15 at high temperature".JOURNAL OF ALLOYS AND COMPOUNDS 699(2017):230-234. |
入库方式： OAI收割
来源：上海硅酸盐研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。