Charge density wave transition in single-layer titanium diselenide
2015年11月16日 · We show that single-layer TiSe 2 exhibits a charge density wave (CDW) transition at critical temperature TC =232±5 K, which is higher than the bulk TC =200±5 K. …
Incoherence-to-coherence crossover observed in charge-density …
2024年10月24日 · Band calculations and angle-resolved photoemission spectroscopy (ARPES) studies confirmed that 1 T -TiSe 2 is a small gap semiconductor with an indirect band gap …
Hidden Order and Dimensional Crossover of the Charge …
2016年11月29日 · The prototypical system TiSe2, with a particularly simple (2 × 2 × 2) transition and no Kohn anomalies caused by electron-phonon coupling, is a fascinating but unsolved …
Nature Communications | 北大：范德瓦尔斯材料1T-TiSe₂单晶中的 …
2024年12月31日 · 近日，北京大学Yan Zhang研究小组利用角分辨光电子能谱（ARPES）和碱金属沉积技术，成功测量了1T-TiSe₂中导带（CB）随温度变化的详细特性。 通过在样品表面沉 …
Splitting of the Ti-3d bands of TiSe2 in the charge ... - ScienceDirect
2017年2月28日 · In this paper, we will present photon energy, polarization, and temperature dependence of TiSe 2 spectra performed by ARPES as well as theoretical band structure …
Unconventional Charge-Density-Wave Transition in Monolayer 1T-TiSe2
2015年12月1日 · Our angle-resolved photoemission spectroscopy (ARPES) signifies an electron pocket at the Brillouin-zone corner above the CDW-transition temperature (TCDW ∼ 200 K), …
Bandgaps in single-layer film and bulk TiSe2. (a) Comparison of ARPES …
(a) Comparison of ARPES spectra and calculated bands (blue dashed curves) for single-layer TiSe2 in both the normal and CDW phases. The data were taken with 58 eV photons.
科学家利用ARPES揭秘1T-TiSe2电子结构！ - 仪器信息网
2024年11月2日 · 本文通过角分辨光电子能谱（arpes）等表征手段，深入探讨了1t-tise₂的电子结构及其温度依赖性。 通过ARPES测量， 作者 发现了在165 K处的非相干到相干的跃迁现象，这 …
Semimetal-to-semiconductor transition and charge-density …
2019年4月1日 · By combining angle-resolved photoemission spectroscopy (ARPES), scanning tunneling microscopy (STM), and density functional theory (DFT) calculations, we investigate …
Controlling the Charge Density Wave Transition in Single-Layer ...
2023年12月20日 · By combining angle-resolved photoemission spectroscopy (ARPES), scanning tunneling microscopy (STM), and d. functional theory (DFT) calcns., we investigate 1T-TiSe2 …