| Interfacial Control of Ferromagnetism in Ultrathin SrRuO3 Films Sandwiched between Ferroelectric BaTiO3 Layers | |
| Gu, Youdi1,2; Song, Cheng1; Zhang, Qinghua3; Li, Fan4; Tan, Hengxin4; Xu, Kun5; Li, Jia3; Saleem, Muhammad Shahrukh1; Fayaz, Muhammad Umer1; Peng, Jingjing6; Hu, Fengxia3; Gu, Lin3; Liu, Wei2; Zhang, Zhidong2; Pan, Feng1 | |
| Corresponding Author | Song, Cheng(songcheng@mail.tsinghua.edu.cn) ; Liu, Wei(wliu@imr.ac.cn) |
| 2020-02-05 | |
| Source Publication | ACS APPLIED MATERIALS & INTERFACES
 |
| ISSN | 1944-8244 |
| Volume | 12Issue:5Pages:6707-6715 |
| Abstract | Interfaces between materials provide an intellectually rich arena for fundamental scientific discovery and device design. However, the frustration of magnetization and conductivity of perovskite oxide films under reduced dimensionality is detrimental to their device performance, preventing their active low-dimensional application. Herein, by inserting the ultrathin 4d ferromagnetic SrRuO3 layer between ferroelectric BaTiO3 layers to form a sandwich heterostructure, we observe enhanced physical properties in ultrathin SrRuO3 films, including longitudinal conductivity, Curie temperature, and saturated magnetic moment. Especially, the saturated magnetization can be enhanced to similar to 3.12 mu(B)/Ru in ultrathin BaTiO3/SrRuO3/BaTiO3 trilayers, which is beyond the theoretical limit of bulk value (2 mu(B)/Ru). This observation is attributed to the synergistic ferroelectric proximity effect (SFPE) at upper and lower BaTiO3/SrRuO3 heterointerfaces, as revealed by the high-resolution lattice structure analysis. This SFPE in dual-ferroelectric interface cooperatively induces ferroelectric-like lattice distortions in RuO6 oxygen octahedra and subsequent spin-state crossover in SrRuO3, which in turn accounts for the observed enhanced magnetization. Besides the fundamental significance of interface-induced spin-lattice coupling, our findings also provide a viable route to the electrical control of magnetic ordering, taking a step toward low-power applications in all-oxide spintronics. |
| Keyword | SrRuO3 sandwich heterostructure synergistic ferroelectric proximity effect enhanced magnetism spin-state transition ferroelectric-like lattice distortions |
| Funding Organization | Beijing Innovation Center for Future Chip (ICFC), Tsinghua University ; Young Chang Jiang Scholars Program ; National Key R&D Program of China ; National Natural Science Foundation of China |
| DOI | 10.1021/acsami.9b20941 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Beijing Innovation Center for Future Chip (ICFC), Tsinghua University ; Young Chang Jiang Scholars Program ; National Key R&D Program of China[2017YFB0405704] ; National Natural Science Foundation of China[51671110] ; National Natural Science Foundation of China[51802297] ; National Natural Science Foundation of China[51571128] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000512216900158 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137247 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Song, Cheng; Liu, Wei |
| Affiliation | 1.Tsinghua Univ, Key Lab Adv Mat MOE, Sch Mat Sci & Engn, Beijing 100084, Peoples R China 2.Univ Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Chinese Acad Sci, Shenyang 110016, Peoples R China 3.Univ Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Chinese Acad Sci, Beijing 100190, Peoples R China 4.Max Planck Inst Microstruct Phys, D-06120 Halle, Saale, Germany 5.Tsinghua Univ, Natl Ctr Electron Microscopy Beijing, Sch Mat Sci & Engn, Beijing 100084, Peoples R China 6.Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China |
| Recommended Citation GB/T 7714 | Gu, Youdi,Song, Cheng,Zhang, Qinghua,et al. Interfacial Control of Ferromagnetism in Ultrathin SrRuO3 Films Sandwiched between Ferroelectric BaTiO3 Layers[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(5):6707-6715. |
| APA | Gu, Youdi.,Song, Cheng.,Zhang, Qinghua.,Li, Fan.,Tan, Hengxin.,...&Pan, Feng.(2020).Interfacial Control of Ferromagnetism in Ultrathin SrRuO3 Films Sandwiched between Ferroelectric BaTiO3 Layers.ACS APPLIED MATERIALS & INTERFACES,12(5),6707-6715. |
| MLA | Gu, Youdi,et al."Interfacial Control of Ferromagnetism in Ultrathin SrRuO3 Films Sandwiched between Ferroelectric BaTiO3 Layers".ACS APPLIED MATERIALS & INTERFACES 12.5(2020):6707-6715. |
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