溶液法制备大尺寸磁开关多铁性复合氧化物外延层
Solution Processed Large-scale Multiferroic Complex Oxide Epitaxy with Magnetically Switched Polarization
摘要：
具有可调结构的复合氧化物具有许多迷人的特性，但精确控制成分的高质量复合氧化物外延仍然遥不可及。在此，我们成功地进行了大面积溶液基单晶外延生长（1-x）BiTi（1-y）/2FeyMg（1-y）/2 O3-（x）CaTiO 3（BTFM-CTO）多铁性固溶体，证实了其原子尺度的铁电性，自发极化强度为79~ 89 uC/cm 2。仔细的成分调整导致在室温下的~0.07uB/Fe的体磁化强度，使得磁感应极化开关表现出2.7- 3.0 × 10 -7s/m的大磁电系数。这项工作展示了溶液处理在大规模复杂氧化物外延中的巨大潜力，并在外延BTFM-CTO薄膜中建立了新型的室温磁电耦合，使得有可能探索更宽的成分，相和结构空间，可以很容易地扩大到工业应用。
英文摘要：
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 atomic-scale with a spontaneous polarization of 79~89uC/cm2. Careful compositional tuning leads to a bulk magnetization of ~0.07uB/Fe at room temperature, enabling magnetically induced polarization switching exhibiting a large magnetoelectric coefficient of 2.7-3.0X10-7s/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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
