溶液法制备具有磁控极化的大面积多铁性复杂氧化物外延薄膜
材料科学
2019-04-09 v1
摘要
具有可调结构的复杂氧化物具有许多引人入胜的性质，但具有精确控制组成的高质量复杂氧化物外延仍难以实现。本文成功开发了用于多铁性(1-x)BiTi(1-y)/2FeyMg(1-y)/2O3-(x)CaTiO3（BTFM-CTO）固溶体大面积溶液基单晶外延，并在原子尺度上确认其铁电性，自发极化达79~89 uC/cm2。细致的组分调控使其在室温下具有约0.07 uB/Fe的体磁化强度，从而实现磁诱导极化翻转，展现出2.7-3.0×10-7 s/m的大磁电系数。本工作展示了溶液法在大面积复杂氧化物外延中的巨大潜力，并在外延BTFM-CTO薄膜中建立了新颖的室温磁电耦合，使得探索更广阔的组成、相和结构空间成为可能，且可轻易放大规模用于工业应用。
引用
@article{arxiv.1904.03370,
title = {Solution Processed Large-scale Multiferroic Complex Oxide Epitaxy with Magnetically Switched Polarization},
author = {Cong Liu and Feng An and Paria S. M. Gharavi and Qinwen Lu and Chao Chen and Liming Wang and Xiaozhi Zhan and Zedong Xu and Yuan Zhang and Ke Qu and Junxiang Yao and Yun Ou and Xiangli Zhong and Dongwen Zhang and Nagarajan Valanoor and Lang Chen and Tao Zhu and Deyang Chen and Xiaofang Zhai and Peng Gao and Tingting Jia and Shuhong Xie and Gaokuo Zhong and Jiangyu Li},
journal= {arXiv preprint arXiv:1904.03370},
year = {2019}
}