Hidden metal-insulator transition in manganites synthesized via a controllable oxidation
文献类型：期刊论文
| 作者 | Song, Chuangye1; Malik, Iftikhar Ahmed1; Li, Menglei2; Zhang, Qinghua3; Wang, Lichen2; Wang, Jing1,4; Chen, Rongyan1,5; Zheng, Renkui6; Dong, Shuai7; Gu, Lin3 |
| 刊名 | Science China Materials
 |
| 出版日期 | 2018 |
| ISSN号 | 20958226 |
| DOI | 10.1007/s40843-018-9344-5 |
| 英文摘要 | Oxygen usually plays crucial roles in tuning the phase structures and functionalities of complex oxides such as high temperature superconductivity, colossal magnetoresistance, catalysis, etc. Effective and considerable control of the oxygen content in those functional oxides could be highly desired. Here, using perovskite manganite (La0.5Sr0.5)MnO3 as a paradigm, we develop a new pathway to synthesize the epitaxial thin films assisted by an in-situ chemical process, where the oxygen content can be precisely controlled by varying oxidative activity tuned by the atmospheric temperature (Tatm) during the growth. A hidden metal-insulator transition (MIT) emerges due to the phase competition, which is never shown in the phase diagram of this classic manganite. The oxygen-mediated interaction between Mn ions together with the change of carrier density might be responsible for this emerging phase, which is compatible with the results of first-principle calculations. This work demonstrates that, apart from traditional cation doping, a precise modulation of anion (O2−, S2−, etc.) may provide a new strategy to control phase structures and functionalities of epitaxial compound thin films. © 2018, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature. |
| 出版者 | Science China Press |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25226]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Department of physics, Beijing Normal University, Beijing; 100875, China; 2.Department of Physics, Capital Normal University, Beijing; 100048, China; 3.Institute of physics, Chinese Academy of Science, Beijing; 100190, China; 4.School of Materials Science and Engineering, Tsinghua University, Beijing; 100084, China; 5.Center for Advanced Quantum Studies, Beijing Normal University, Beijing; 100875, China; 6.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 7.School of Physics, Southeast University, Nanjing; 211189, China; 8.Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing; 100084, China |
| 推荐引用方式 GB/T 7714 | Song, Chuangye,Malik, Iftikhar Ahmed,Li, Menglei,et al. Hidden metal-insulator transition in manganites synthesized via a controllable oxidation[J]. Science China Materials,2018. |
| APA | Song, Chuangye.,Malik, Iftikhar Ahmed.,Li, Menglei.,Zhang, Qinghua.,Wang, Lichen.,...&Zhang, Jinxing.(2018).Hidden metal-insulator transition in manganites synthesized via a controllable oxidation.Science China Materials. |
| MLA | Song, Chuangye,et al."Hidden metal-insulator transition in manganites synthesized via a controllable oxidation".Science China Materials (2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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