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铁电领域的亚纳秒重构在比斯木铁矿中的铁电领域

Burak Guzelturk¹, Tiannan Yang^2,3, Yu-Chen Liu^4,5

¹X-ray Science Division, Argonne National Laboratory, Lemont, IL, 60439, USA.

Advanced materials (Deerfield Beach, Fla.)

|August 23, 2023

概括

超快的激光器在不到100皮秒的时间内重新配置了木铁中的铁电域. 这一突破使得高速电子设备和数据存储的亚纳秒控制成为可能.

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:

域切换对于铁性材料的功能至关重要.
实现亚纳秒域控制对于高速电子应用至关重要.

研究的目的:

在铁电材料中研究超快激光诱导的域重构.
探索在亚纳秒时间尺度上操纵铁电领域的方法.

主要方法:

利用超快激光激发来诱导多铁石铁中的域切换.
采用皮秒和纳米分辨率的X射线衍射和时间分辨率的X射线分散散射用于可视化.
进行相场模拟以了解域动态.

主要成果:

铁电条纹域在不到100皮秒的时间内暂时融化并重新配置.
域障碍与光生成载体选和充电域壁相关.
观察到在纳米秒时间尺度上以高达10 m/s的非平衡速度恢复亚扩散域.

结论:

展示了一种用于在亚纳秒时间尺度上成像和操纵铁电域的新方法.
这种方法为高速铁电数据存储和计算提供了潜力.
为复杂材料的非平衡动态提供了新的见解.

关键词:

在X射线纳米衍射技术中.扩散散的散射是一种分散的散射.领域工程领域工程领域工程化领域化领域域名墙壁域名墙壁铁电器铁电器铁电器

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