Large-scale multiferroic complex oxide epitaxy with magnetically switched polarization enabled by solution processing
| Autor: | Junxiang Yao, Xiangli Zhong, Xiaozhi Zhan, Tao Zhu, Liming Wang, Xiaofang Zhai, Shuhong Xie, Paria S. M. Gharavi, Liu Cong, Yun Ou, Tingting Jia, Ke Qu, Lang Chen, Feng An, Yuan Zhang, Junkun Zha, Gaokuo Zhong, Dongwen Zhang, Peng Gao, Qinwen Lu, Jiangyu Li, Nagarajan Valanoor, Zhiming Zhao, Zedong Xu, Chao Chen, Deyang Chen |
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| Rok vydání: | 2019 |
| Předmět: |
solution method
Multidisciplinary Materials science business.industry Materials Science epitaxy 02 engineering and technology complex oxide 010402 general chemistry 021001 nanoscience & nanotechnology Epitaxy Polarization (waves) 01 natural sciences Ferroelectricity Atomic units Induced polarization 0104 chemical sciences Magnetization Optoelectronics Multiferroics multiferroic 0210 nano-technology business Research Article Solid solution |
| Zdroj: | National Science Review |
| ISSN: | 2053-714X 2095-5138 |
| DOI: | 10.1093/nsr/nwz143 |
| Popis: | Complex oxides with tunable structures have many fascinating properties, though high-quality complex oxide epitaxy with precisely controlled composition is still out of reach. Here we have successfully developed solution-based single-crystalline epitaxy for multiferroic (1-x)BiTi(1-y)/2FeyMg(1-y)/2O3–(x)CaTiO3 (BTFM–CTO) solid solution in large area, confirming its ferroelectricity at the atomic scale with strong spontaneous polarization. Careful compositional tuning leads to a bulk magnetization of 0.07 ± 0.035 μB/Fe at room temperature, enabling magnetically induced polarization switching exhibiting a large magnetoelectric coefficient of 2.7–3.0 × 10−7 s/m. This work demonstrates the great potential of solution processing in large-scale complex oxide epitaxy and establishes novel room-temperature magnetoelectric coupling in epitaxial BTFM–CTO film, making it possible to explore a much wider space of composition, phase, and structure that can be easily scaled up for industrial applications. |
| Databáze: | OpenAIRE |
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