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在氧化物接口上出现的磁性和电子相互作用的超快的特拉赫兹场控制

Abigail M Derrico^1,2, Martina Basini^3,4, Vivek Unikandanunni^3,5

¹Department of Physics, Temple University, Philadelphia, PA, 19122, USA.

Advanced materials (Deerfield Beach, Fla.)

|November 24, 2025

概括

超快的电场脉冲控制氧化物超级中的磁性状态. 这项研究为通过使用太赫兹 (THz) 场操纵界面磁力铺平了节能设备的道路.

科学领域:

凝聚物质物理学凝聚物质物理学
材料科学材料科学材料科学
这就是Spintronics.

背景情况:

氧化物接口表现出新兴的电子和磁性质.
对这些状态的控制是下一代节能设备的关键.

研究的目的:

为了证明超快的电场控制电子结构和铁磁.
通过使用强烈的太赫兹 (THz) 脉冲来研究 LaNiO3/CaMnO3 超级网格系统.

主要方法:

在LaNiO3/CaMnO3超级网格的表面上生长.
先进的X射线光谱技术用于磁光分析.
时间分辨率和温度依赖的光学测量.

主要成果:

实现了电子结构和铁磁界面状态的有效控制.
观察到小比秒不平衡的朱尔加热和超快的去磁化.
确定了与旋转角运动量转移到格子相关的较慢动态.

结论:

超快的THz电场脉冲可以有效地控制氧化物接口上的2D铁磁状态.
研究结果表明,这是一种操纵界面磁性的新途径.
开发先进的节能电子设备的潜力.

关键词:

射线光谱和散射的X射线光谱学复杂的氧化物异构结构.接口铁磁力学接口铁磁超快的动力学超快的动力学

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