论文标题
电荷有序量子材料中亚稳态状态的时域相图
A time-domain phase diagram of metastable states in a charge ordered quantum material
论文作者
论文摘要
量子材料中的亚稳态自组织电子状态至关重要，表现出可能在新一代传感器和内存设备中使用的新兴动力学特性。这种状态通常是通过非平衡条件下的相变形成的，并且通过跨越大范围的时间尺度的过程达到最终状态。 By using time-resolved optical techniques and femtosecond-pulse-excited scanning tunneling microscopy (STM), the evolution of the metastable states in the quasi-two-dimensional dichalcogenide 1T-TaS2 is mapped out on a temporal phase diagram using the photon density and temperature as control parameters on timescales ranging from 10^(-12) to 10^3 s.相图中的时间域轴的引入使我们能够遵循通过不同时间尺度上不同相变机制创建的亚稳态新兴状态的演变，从而使相位图的理论预测与理解亚属性材料中复杂的顺序过程的理解开辟了道路。
Metastable self-organized electronic states in quantum materials are of fundamental importance, displaying emergent dynamical properties that may be used in new generations of sensors and memory devices. Such states are typically formed through phase transitions under non-equilibrium conditions and the final state is reached through processes that span a large range of timescales. By using time-resolved optical techniques and femtosecond-pulse-excited scanning tunneling microscopy (STM), the evolution of the metastable states in the quasi-two-dimensional dichalcogenide 1T-TaS2 is mapped out on a temporal phase diagram using the photon density and temperature as control parameters on timescales ranging from 10^(-12) to 10^3 s. The introduction of a time-domain axis in the phase diagram enables us to follow the evolution of metastable emergent states created by different phase transition mechanisms on different timescales, thus enabling comparison with theoretical predictions of the phase diagram and opening the way to understanding of the complex ordering processes in metastable materials.
