标题： 局部界面效应调制1T-TaS$_2$/1H-WSe$_2$异质结构的全局电荷秩序和光学性质 显示英文标题

标题： Local interface effects modulate global charge order and optical properties of 1T-TaS$_2$/1H-WSe$_2$ heterostructures

摘要： 1T-TaS$_2$是一种层状电荷密度波（CDW）晶体，表现出尖锐的相变和相关的电阻变化。 这些电阻台阶可以用于信息存储，这凸显了控制和调节CDW状态的重要性。 鉴于在 1T-TaS$_2$中面外相互作用的重要性，通过异质结构调制层间相互作用是一种调节CDW相变的有前途的方法。 在本工作中，我们研究了由 1T-TaS$_2$和单层 1H-WSe$_2$组成的异质结构的光学和电子性质。 通过系统地改变 1T-TaS$_2$的厚度及其与 1H-WSe$_2$的方位对齐，我们发现本征莫尔应变和界面电荷转移在 1T-TaS$_2$中引入了CDW无序，并改变了CDW有序温度。 此外，我们的研究显示，层间对齐影响1H-WSe$_2$中的激子动力学，表明异质结构可以同时调节1T-TaS$_2$的电子相和1H-WSe$_2$的光学性质。 这项工作提出了一种有前景的方法，用于工程化集成CDW材料和半导体的异质结构的光电行为。 显示英文摘要

摘要： 1T-TaS$_2$ is a layered charge density wave (CDW) crystal exhibiting sharp phase transitions and associated resistance changes. These resistance steps could be exploited for information storage, underscoring the importance of controlling and tuning CDW states. Given the importance of out-of-plane interactions in 1T-TaS$_2$, modulating interlayer interactions by heterostructuring is a promising method for tailoring CDW phase transitions. In this work, we investigate the optical and electronic properties of heterostructures comprising 1T-TaS$_2$ and monolayer 1H-WSe$_2$. By systematically varying the thickness of 1T-TaS$_2$ and its azimuthal alignment with 1H-WSe$_2$, we find that intrinsic moir\'e strain and interfacial charge transfer introduce CDW disorder in 1T-TaS$_2$ and modify the CDW ordering temperature. Furthermore, our studies reveal that the interlayer alignment impacts the exciton dynamics in 1H-WSe$_2$, indicating that heterostructuring can concurrently tailor the electronic phases in 1T-TaS$_2$ and the optical properties of 1H-WSe$_2$. This work presents a promising approach for engineering optoelectronic behavior of heterostructures that integrate CDW materials and semiconductors.