Strain effects on stability of topological ferroelectric polar configurations in (PbTiO3)(n)/(SrTiO3)(n) superlattices
文献类型：期刊论文
| 作者 | Dai, Cheng2,3; Hong, Zijian1; Das, Sujit4; Tang, Yun-Long5,6; Martin, Lane W.5; Ramesh, Ramamoorthy5; Chen, Long-Qing2,3 |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2023-07-31 |
| 卷号 | 123期号:5页码:5 |
| ISSN号 | 0003-6951 |
| DOI | 10.1063/5.0160901 |
| 通讯作者 | Dai, Cheng(daicheng1993313@gmail.com) ; Chen, Long-Qing(lqc3@psu.edu) |
| 英文摘要 | The (PbTiO3)(n)/(SrTiO3)(n) (PTO/STO) superlattice system has been shown to exhibit interesting topological phases (e.g., vortices and skyrmions) in addition to normal ferroelectric domain states. Existing studies are mostly focused on the dependence of topological polar distributions and properties of PTO/STO superlattice on its periodicity. Here, we study the strain effect on the topological phase transitions and ferroelectric domain structures employing phase-field simulations. We summarized in an isotropic strain (in-plane misfit strain along the x direction is equal to that along the y direction) periodicity phase diagram displaying the stability regions of different polar topological states, including normal ferroelectric twins, vortices, skyrmions, and mixtures of vortices and twins. We also analyzed the polarization configurations under anisotropic in-plane strains (in-plane misfit strain along the x direction is not equal to that along the y direction) and demonstrated that the strain anisotropy can be used to tune the directions of vortex arrays along either the [100] (pc) or [010] (pc) directions or labyrinth vortex arrays. This work offers guidance to manipulating polar structures in the PTO/STO superlattices via strain engineering. |
| 资助项目 | U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[DE-SC-0012375] ; Office of Basic Energy Sciences, U.S. Department of Energy[DE-AC02-05CH11231] ; Army Research Office[W911NF-21-2-0162] ; Science and Engineering Research Board[SRG/2022/000058] ; Indian Institute of Science |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001042941800001 |
| 出版者 | AIP Publishing |
| 资助机构 | U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences ; Office of Basic Energy Sciences, U.S. Department of Energy ; Army Research Office ; Science and Engineering Research Board ; Indian Institute of Science |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178822]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Dai, Cheng; Chen, Long-Qing |
| 作者单位 | 1.Zhejiang Univ, Sch Mat Sci & Engn, Lab Dielect Mat, Hangzhou 310027, Peoples R China 2.Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA 3.Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA 4.Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India 5.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA 6.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Cheng,Hong, Zijian,Das, Sujit,et al. Strain effects on stability of topological ferroelectric polar configurations in (PbTiO3)(n)/(SrTiO3)(n) superlattices[J]. APPLIED PHYSICS LETTERS,2023,123(5):5. |
| APA | Dai, Cheng.,Hong, Zijian.,Das, Sujit.,Tang, Yun-Long.,Martin, Lane W..,...&Chen, Long-Qing.(2023).Strain effects on stability of topological ferroelectric polar configurations in (PbTiO3)(n)/(SrTiO3)(n) superlattices.APPLIED PHYSICS LETTERS,123(5),5. |
| MLA | Dai, Cheng,et al."Strain effects on stability of topological ferroelectric polar configurations in (PbTiO3)(n)/(SrTiO3)(n) superlattices".APPLIED PHYSICS LETTERS 123.5(2023):5. |
入库方式： OAI收割
来源：金属研究所
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