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封闭和辐射单层Pt₂HgSe₃的量子化光导率

Bui D Hoi¹, Ta T Tho²

¹Faculty of of Physics, University of Education, Hue University, Hue 530000, Vietnam. buidinhhoi@hueuni.edu.vn.

Physical chemistry chemical physics : PCCP

|August 19, 2025

概括

单层jacutingaite (Pt2HgSe3) 通过电场表现出可调节的光导电性和增强的霍尔导电性. 调整能量差距会转移光学吸收,并信号拓相位过渡,这对于自旋电子学至关重要.

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
固态物理固态物理

背景情况:

单层金石 (Pt2HgSe3) 是一种具有电子应用潜力的材料.
了解其光学和电子特性是解锁其技术能力的关键.

研究的目的:

在可调节间隙参数下研究单层jacutingaite的光导电性.
分析静态电场和动态电场对带间和带内转换的影响.
探索能量差距和拓相位过渡之间的关系.

主要方法:

分析光子能量对光导率的依赖.
调查带内 (Drude-like) 和带间过渡.
模拟电场诱导的对称性破坏 (反转和时间逆转).

主要成果:

带内导电性显示了类似德鲁德的衰变.
带间导电率呈现急剧发作,表明存在能量差距.
电场显著增强了大厅导电性,破坏了对称性.
可调节的能量间隙会导致光学吸收和拓相位过渡的变化.

结论:

单层金石具有由电场控制的可调节光学特性.
能量差距在光学吸收和拓特性中起着至关重要的作用.
这种材料对自旋电子和山谷电子应用非常有前途.

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