Ionic Liquid Gating Control of Oxygen Vacancies in the La0.8Ba0.2MnO3 Ultrathin Films
文献类型：期刊论文
| 作者 | Lin, Guankai1,2; Wang, Haoru1; Cai, Xuhui1; Tong, Wei3 ; Zhu, Hong1
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| 刊名 | ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 11 |
| ISSN号 | 2162-8769 |
| DOI | 10.1149/2162-8777/ac5496 |
| 通讯作者 | Zhu, Hong(zhuh@ustc.edu.cn) |
| 英文摘要 | In this work, we show ionic liquid field-effect of La0.8Ba0.2MnO3 (LBMO) untrathin films prepared by the sol-gel method. When applying a positive gate voltage (V (g)) in vacuum, it is found that the film resistivity continuously increases tenfold within hours or minutes depending on the magnitude of V (g), accompanied with disappearance of the low-temperature metallic transport behavior. In contrast, the film resistivity changes little in air or under a negative applied V (g). Such a difference reveals that the increased resistivity is related to the oxygen depletion in the films under the positive V (g), especially at the grain boundaries. After removing the positive V (g) in vacuum, the room-temperature resistivity begins to fall off and the low-temperature metallic state is partially restored in several tens hours, suggesting oxygen diffusion from the relatively oxygen-rich grains to the seriously oxygen-deficient grain boundaries. Furthermore, the oxygen content in the oxygen-deficient films can be almost fully restored in ten minutes by external annealing (200 degrees C) or Joule self-heating (21 mA) the films in air. These experimental findings provide an additional method in tuning oxygen vacancies in transition-metal oxide films. |
| WOS关键词 | SUPERCONDUCTIVITY |
| 资助项目 | National Natural Science Foundation of China[11674298] ; Users with Excellence Project of Hefei Science Center CAS[2018HSC-UE013] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELECTROCHEMICAL SOC INC |
| WOS记录号 | WOS:000759147300001 |
| 资助机构 | National Natural Science Foundation of China ; Users with Excellence Project of Hefei Science Center CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/127892]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhu, Hong |
| 作者单位 | 1.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China 2.Fujian Univ Technol, Sch Elect Elect Engn & Phys, Fuzhou 350118, Peoples R China 3.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Guankai,Wang, Haoru,Cai, Xuhui,et al. Ionic Liquid Gating Control of Oxygen Vacancies in the La0.8Ba0.2MnO3 Ultrathin Films[J]. ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY,2022,11. |
| APA | Lin, Guankai,Wang, Haoru,Cai, Xuhui,Tong, Wei,&Zhu, Hong.(2022).Ionic Liquid Gating Control of Oxygen Vacancies in the La0.8Ba0.2MnO3 Ultrathin Films.ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY,11. |
| MLA | Lin, Guankai,et al."Ionic Liquid Gating Control of Oxygen Vacancies in the La0.8Ba0.2MnO3 Ultrathin Films".ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY 11(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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