通过界面兴奋剂进行MoTe2/铁电异构结构的光学调制.
Yuqing Zhou1,2, Chao Yang1, Xingke Fu3
1Center for Spintronics and Quantum Systems, State Key Laboratory for Mechanical Behavior of Materials, Department of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
ACS applied materials & interfaces
|February 27, 2024
概括
接口兴奋剂控制铁电极化使用紫外线在MoTe2/BaTiO3/La0.7Sr0.3MnO3异构结构. 厚度依赖的兴奋剂导致相反的极化切换,推进纳米电子和光电子设备.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术 纳米技术
背景情况:
- 铁电异构结构对于纳米电子和光电子设备至关重要.
- 通过接口兴奋剂控制铁电极化是一种有效的策略.
- 紫外线 (UV) 光为光学调制提供了一个有前途的方法.
研究的目的:
- 为了研究MoTe2/BaTiO3/La0.7Sr0.3MnO3 (MoTe2/BTO/LSMO) 异构结构中的紫外线光诱导的偏振切换.
- 探索MoTe2薄膜厚度对极化行为的影响.
- 了解铁电异构结构中光学调制的基本机制.
主要方法:
- 制造具有不同MoTe2厚度的MoTe2/BTO/LSMO异构结构.
- 紫外线光诱导的偏振开关的特征.
- 对接口兴奋剂效应和带结构调制的分析.
- 测量电力运输特征以确定接口属性.
主要成果:
- 根据MoTe2厚度,证明了基于紫外线光诱导的相反偏振切换行为.
- 识别了具有相反极性的厚度依赖接口兴奋剂.
- 观察到增强的有效内置场触发了MoTe2和BTO膜中的载体转移.
- 揭示了不同极化状态下的接口屏障高度和陷状态.
结论:
- 接触场,偏振场和光学激发载体的相互作用决定了UV光诱导的偏振切换.
- 铁电极化的多场调制是可以实现的.
- 这些发现增强了铁电器件在光电子,逻辑,记忆和突触功能的潜在应用.
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