The challenge in realizing an exchange coupled BiFeO3-double perovskite bilayer
The challenge in realizing an exchange coupled BiFeO3-double perovskite bilayer
复制标题
DOI：
10.1016/j.jmmm.2020.166766
复制
发表时间：
2020-07
影响因子：
2.7
通讯作者：
S. Becker;S. Heinz;M. Vafaee;M. Kläui;G. Jakob
中科院分区：
文献类型：
--
作者：
S. Becker;S. Heinz;M. Vafaee;M. Kläui;G. Jakob
在这项工作中，我们提出了一种设备设计的有效电压控制的磁性。亚铁磁性双钙钛矿的磁化可以通过多铁性BiFeO3的交换耦合层来操纵。利用层间强交换耦合的可能性，采用脉冲激光沉积法制备了钡掺杂BiFeO3和亚铁磁性双钙钛矿结构Sr2FeMoO6双层薄膜。虽然每种材料的单层显示出高质量，但我们观察到，在两种堆叠顺序中，第一层在第二层的沉积期间分解。分解的原因是强烈不同的BiFeO3和Sr2FeMoO6的生长条件。这意味着人工多铁性堆叠的产生需要仔细选择组成材料以确保双层稳定性。
In this work we propose a device design for efficient voltage control of magnetism. The magnetization of a ferrimagnetic double perovskite may be manipulated by an exchange coupled layer of multiferroic BiFeO3. Bilayers of Barium doped BiFeO3and ferrimagnetic double perovskite Sr2FeMoO6have been prepared by pulsed laser deposition motivated by the possibility of strong interlayer exchange coupling. While single layers of each material show high quality we observe that in both stacking orders the first layer decomposes during the deposition of the second layer. The reason for the decomposition are strongly differing growth conditions for BiFeO3and Sr2FeMoO6. This means that the generation of artificial multiferroic stacks requires careful choice of the constituent materials to ensure the bilayer stability.