论文标题
CVD种植MOS $ _2 $单层的光谱函数在化学转移到AU表面后
Spectral functions of CVD grown MoS$_2$ monolayers after chemical transfer onto Au surface
论文作者
论文摘要
范德华（Van der Waals）（VDW）晶体的最新兴起已经为研究多功能和异国情调的基本物理学（例如Twistronics）开辟了新的前景。即使最近对纳米式光学器件的角度分辨光发射光谱（ARPE）的发展，使化学转移晶体的清洁表面和界面具有挑战性，无法获得高分辨率ARPES光谱。在这里，我们表明，通过使用亚微米尺寸的束和聚苯乙烯辅助转移，然后在超高真空环境中退火过程，可以测量纳米凸孔和聚苯乙烯辅助转移，然后在超高的真空环境中退火过程，可以测量旋转轨道拆卸和诸如CVD-Grown，单层MOS2的旋转轨道拆卸和诸如CVD-Grown的频带重归其化的明显清晰的ARPES光谱特征。我们的发现铺平了一种利用化学转移的晶体来测量高分辨率ARPES光谱的方法，以观察VDW异质结构中的外来准准颗粒。
The recent rise of van der Waals (vdW) crystals has opened new prospects for studying versatile and exotic fundamental physics with future device applications such as twistronics. Even though the recent development on Angle-resolved photoemission spectroscopy (ARPES) with Nano-focusing optics, making clean surfaces and interfaces of chemically transferred crystals have been challenging to obtain high-resolution ARPES spectra. Here, we show that by employing nano-ARPES with submicron sized beam and polystyrene-assisted transfer followed by annealing process in ultra-high vacuum environment, remarkably clear ARPES spectral features such as spin-orbit splitting and band renormalization of CVD-grown, monolayered MoS2 can be measured. Our finding paves a way to exploit chemically transferred crystals for measuring high-resolution ARPES spectra to observe exotic quasi-particles in vdW heterostructures.
