研究・研究者
研究会・セミナー
| 演 題 | 「Quasi-Particle Interference Studies of Low-Dimensional Quantum Materials」 |
|---|---|
| 日 時 | 2019年04月23日(火) 15:00 |
| 講演者 | Prof. Chun-Liang Lin（Department of Electrophysics, National Chiao Tung University, Taiwan） |
| 場 所 | 分子科学研究所 研究棟2階201号室 |
| 概 要 |
Low-dimensional quantum materials have become promising materials for next generation devices. Because of the huge diversity among them, to characterize their properties is an urgent issue. In this presentation, the electronic properties inside low-dimensional quantum materials such as silicene[1,2], layered bismuth[3], and transition metal dichalcogenides (TMDs)[4, 5] are investigated by quasiparticle interference (QPI) based on scanning tunneling microscopy (STM). For example, the real-space observations of multilayer silicene and WTe2 are shown in Fig. 1 and Fig. 2, respectively. After the fast Fourier transformation (FFT), these real-space images can provide the information of wavenumbers (κ) of scattered quasiparticles at specific energy (Ε). By collecting large numbers of images at different energy, the Ε‐κ plots reveal the intrinsic electronic structures of both materials. The results provide answers to several crucial questions related to these low-dimensional quantum materials and stimulate further exploration of the characteristics of new materials. |
| その他 |
所内対応者：山本 浩史（協奏分子システム研究センター） |
