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超低应变诱导的浮现极化结构在一个灵活的独立的BaTiO₃膜

Jie Wang^1,2,3, Zhen Liu⁴, Qixiang Wang¹

¹Spintronics Institute, School of Physics and Technology, University of Jinan, Jinan, 250022, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|April 22, 2024

概括

研究人员在柔性酸 (BaTiO3) 膜中使用低应变工程设计了铁性顺序,为节能电子产品创造了新的齐克扎克形态和域结构.

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:

工程铁订单对于下一代电子设备至关重要,需要对原子结构和铁配置进行控制.
在铁电薄膜和异构结构中实现了多样化的极化结构和拓领域.
极化切换和域核化是节能和多功能极化结构的关键.

研究的目的:

在一个灵活的独立的酸 (BaTiO3) 膜中引入连续和周期性应变.
为了实现状形态,并构建新的极点头/尾边界和/反域.
为了证明高效的极化结构,使用明显较低的应变比刚性铁电.

主要方法:

在一个灵活的独立的BaTiO3膜上施加连续和周期性应变.
压力应变的诱导率低至大约0.5%.
由此产生的齐克扎克形态和铁电域结构的表征.

主要成果:

在BaTiO3膜中成功创建了齐克扎克形态.
构建极点头/尾边界和/反领域.
使用压缩应变显著低 (≈0.5%) 达到域结构,比通常用于表轴刚性铁电材料所需的要低.

结论:

这项研究展示了一种有效的方法来创建复杂的铁电极化结构.
低应变方法在理论上是有价值的,并且在实践中对开发下一代灵活的多功能设备具有重要意义.
在BaTiO3膜中设计的铁序列为先进的电子应用提供了途径.

关键词:

作为一个独立的膜.两极分化是一种极化.应变工程是一种应变工程.这是一个的 vortex.齐格扎格形态的形态学

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