Large Polarization Near 50 μC/cm2 in a Single Unit Cell Layer SrTiO3
文献类型：期刊论文
| 作者 | Wang, Jing-Hui1,2; Zhu, Mei-Xiong1,2; Li, Yu-Shu1,2; Chen, Shuang-Jie1,2; Gong, Feng-Hui3; Lv, Xiao-Dong1,2; Jiang, Ru-Jian1,2; Liu, Su-Zhen1,2; Li, Changji1; Wang, Yu-Jia1 |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2024-03-25 |
| 卷号 | 24期号:14页码:4082-4090 |
| 关键词 | polar SrTiO3 room-temperature polarization strain engineering interfacial coupling atomicscale |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/acs.nanolett.3c04695 |
| 通讯作者 | Tang, Yun-Long(yltang@imr.ac.cn) ; Zhu, Yin-Lian(zhuyinlian@sslab.org.cn) |
| 英文摘要 | The generally nonpolar SrTiO3 has attracted more attention recently because of its possibly induced novel polar states and related paraelectric-ferroelectric phase transitions. By using controlled pulsed laser deposition, high-quality, ultrathin, and strained SrTiO3 layers were obtained. Here, transmission electron microscopy and theoretical simulations have unveiled highly polar states in SrTiO3 films even down to one unit cell at room temperature, which were stabilized in the PbTiO3/SrTiO3/PbTiO3 sandwich structures by in-plane tensile strain and interfacial coupling, as evidenced by large tetragonality (similar to 1.05), notable polar ion displacement (0.019 nm), and thus ultrahigh spontaneous polarization (up to similar to 50 mu C/cm(2)). These values are nearly comparable to those of the strong ferroelectrics as the PbZrxTi1-xO3 family. Our findings provide an effective and practical approach for integrating large strain states into oxide films and inducing polarization in nonpolar materials, which may broaden the functionality of nonpolar oxides and pave the way for the discovery of new electronic materials. |
| 资助项目 | National Natural Science Foundation of China[L2022R04] ; National Natural Science Foundation of China[L2021F06] ; Shenyang National Laboratory for Materials Science[2021187] ; Youth Innovation Promotion Association, CAS[YJKYYQ20200066] ; Scientific Instrument Developing Project of CAS[52122101] ; Scientific Instrument Developing Project of CAS[51971223] ; National Natural Science Foundation of China |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001190694800001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science ; Youth Innovation Promotion Association, CAS ; Scientific Instrument Developing Project of CAS ; National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tang, Yun-Long; Zhu, Yin-Lian |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Bay Area Ctr Elect Microscopy, Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 4.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 5.Hunan Univ Sci & Technol, Sch Mat Sci & Engn, Xiangtan 411201, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jing-Hui,Zhu, Mei-Xiong,Li, Yu-Shu,et al. Large Polarization Near 50 μC/cm2 in a Single Unit Cell Layer SrTiO3[J]. NANO LETTERS,2024,24(14):4082-4090. |
| APA | Wang, Jing-Hui.,Zhu, Mei-Xiong.,Li, Yu-Shu.,Chen, Shuang-Jie.,Gong, Feng-Hui.,...&Ma, Xiu-Liang.(2024).Large Polarization Near 50 μC/cm2 in a Single Unit Cell Layer SrTiO3.NANO LETTERS,24(14),4082-4090. |
| MLA | Wang, Jing-Hui,et al."Large Polarization Near 50 μC/cm2 in a Single Unit Cell Layer SrTiO3".NANO LETTERS 24.14(2024):4082-4090. |
入库方式： OAI收割
来源：金属研究所
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。