Room-Temperature Ferroelectricity of Paraelectric Oxides Tailored by Nano-Engineering
文献类型：期刊论文
| 作者 | Liu, Jiaqi1,3,4; Cao, Yi1,3,4; Tang, Yun-Long1,3; Zhu, Yin-Lian2; Wang, Yujia1,3; Liu, Nan1,3,4; Zou, Min-Jie2; Shi, Tong-Tong1,3,4; Liu, Fang1,3,4; Gong, Fenghui1,3,4 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2023-01-12 |
| 页码 | 8 |
| ISSN号 | 1944-8244 |
| 关键词 | pulsed laser deposition SrTiO3 CeO2 epitaxial structure room-temperature ferroelectricity nano-engineering strain engineering |
| DOI | 10.1021/acsami.2c19944 |
| 通讯作者 | Zhu, Yin-Lian(zhuyinlian@sslab.org.cn) |
| 英文摘要 | Inducing clear ferroelectricity in the quantum para-electric SrTiO3 is important for triggering methods to discover hidden phases in condensed matter physics. Several methods such as isotope substitution and freestanding membranes could introduce ferroelec-tricity in SrTiO3 toward nonvolatile memory applications. However, the stable transformation from quantum paraelectric SrTiO3 to ferroelectricity SrTiO3 at room temperature still remains challenging. Here, we used multiple nano-engineering in (SrTiO3)0.65/(CeO2)0.35 films to achieve an emergent room-temperature ferroelectricity. It is shown that the CeO2 nanocolumns impose large out-of-plane strains and induce Sr/O deficiency in the SrTiO3 matrix to form a clear tetragonal structure, which leads to an apparent room-temperature ferroelectric polarization up to 2.5 mu C/cm2. In collaboration with density functional theory calculations, it is proposed that the compressive strains combined with elemental deficiency give rise to local redistribution of charge density and orbital order, which induce emergent tetragonality of the strained SrTiO3. Our work thus paves a pathway for architecting functional systems in perovskite oxides using a multiple nano-design. |
| 资助项目 | National Natural Science Foundation of China[51971223] ; National Natural Science Foundation of China[51922100] ; National Natural Science Foundation of China[52122101] ; Key Research Program of Frontier Sciences CAS[QYZDJ-SSW-JSC010] ; Shenyang National Laboratory for Materials Science[L2019R06] ; Shenyang National Laboratory for Materials Science[L2019R08] ; Shenyang National Laboratory for Materials Science[L2019F01] ; Shenyang National Laboratory for Materials Science[L2019F13] ; Scientific Instrument Developing Project of CAS[YJKYYQ20200066] ; Youth Innovation Promotion Association CAS[Y202048] ; Youth Innovation Promotion Association CAS[2021187] ; China National Postdoctoral Program for Innovative Talents[BX2021348] ; China Postdoctoral Science Foundation[2021M703455] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000918834800001 |
| 资助机构 | National Natural Science Foundation of China ; Key Research Program of Frontier Sciences CAS ; Shenyang National Laboratory for Materials Science ; Scientific Instrument Developing Project of CAS ; Youth Innovation Promotion Association CAS ; China National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/175317]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhu, Yin-Lian |
| 作者单位 | 1.Inst Met Sci & Technol, Chinese Acad Sci, Shenyang 110016, Peoples R China 2.Bay Area Ctr Electron Microscopy, Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jiaqi,Cao, Yi,Tang, Yun-Long,et al. Room-Temperature Ferroelectricity of Paraelectric Oxides Tailored by Nano-Engineering[J]. ACS APPLIED MATERIALS & INTERFACES,2023:8. |
| APA | Liu, Jiaqi.,Cao, Yi.,Tang, Yun-Long.,Zhu, Yin-Lian.,Wang, Yujia.,...&Ma, Xiu-Liang.(2023).Room-Temperature Ferroelectricity of Paraelectric Oxides Tailored by Nano-Engineering.ACS APPLIED MATERIALS & INTERFACES,8. |
| MLA | Liu, Jiaqi,et al."Room-Temperature Ferroelectricity of Paraelectric Oxides Tailored by Nano-Engineering".ACS APPLIED MATERIALS & INTERFACES (2023):8. |
入库方式： OAI收割
来源：金属研究所
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