呼吸控制的纯轨道和非线性大厅效应在2D有机Kagome框架中
Lei Yang1, Jinming Dong1, Zhikuan Wang2
1School of Physics, National Demonstration Center for Experimental Physics Education, Shandong University, Jinan 250100, China.
Nano letters
|January 26, 2026
概括
晶体多孔有机框架,如共价有机框架 (COF) 和键有机框架 (HOF),表现出独特的电子特性. 这些材料通过几何控制实现可切换轨道霍尔和非线性霍尔效应,为电子设备提供了新的可能性.
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
- 有机化学 有机化学
背景情况:
- 晶体多孔有机框架,包括共价有机框架 (COF) 和键有机框架 (HOF),为电子现象提供可调的平台.
- 这些材料是有吸引力的,因为它们的几何调性和可以忽略的旋转轨道合 (SOC).
研究的目的:
- 为了研究二维 (2D) 有机呼吸 kagome (BK) COF 和 HOF 的电子特性.
- 通过几何调制来证明控制轨道霍尔效应 (OHE),非线性霍尔效应 (NHE) 和非平衡轨道磁化 (NEOM) 的潜力.
主要方法:
- 用对称性分析来理解电子带结构.
- 使用第一原则计算来模拟和预测电子现象.
主要成果:
- 2D有机BKCOF和HOF表现出明显的OHE,NHE和NEOM,由呼吸诱导的反向对称破坏 (ISB) 驱动.
- 这些效应纯粹源于由于微不足道的SOC的几何调制,允许可逆控制轨道角动量和贝里曲率.
- OHE在不同的频段间隙中持续存在,而NHE和NEOM是特定于ISB制度的,并且可以调.
结论:
- 有机BK网格是实现和操纵OHE和NHE的理想无SOC平台.
- 这些框架中的几何控制可以实现可切换的电子响应,为新型电子应用铺平了道路.
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