Understanding the Mott insulating state in 1T-TaS2 and 1T-TaSe2

Y Fei, Z Wu, W Zhang, Y Yin - AAPPS Bulletin, 2022 - Springer
In this article, we review the recent progress of the scanning tunneling microscopy studies of
1 T-TaS2 and 1 T-TaSe2 for bulk single crystals and molecular beam epitaxy monolayer …

Dualistic insulator states in 1T-TaS2 crystals

Y Wang, Z Li, X Luo, J Gao, Y Han, J Jiang… - Nature …, 2024 - nature.com
While the monolayer sheet is well-established as a Mott-insulator with a finite energy gap,
the insulating nature of bulk 1T-TaS2 crystals remains ambiguous due to their varying …

Effect of stacking order on the electronic state of

Z Wu, K Bu, W Zhang, Y Fei, Y Zheng, J Gao, X Luo… - Physical Review B, 2022 - APS
New theoretical proposals and experimental findings on transition metal dichalcogenide 1 T-
TaS 2 have revived interest in its possible Mott insulating state. We perform a …

Mott versus Hybridization Gap in the Low-Temperature Phase of

F Petocchi, CW Nicholson, B Salzmann, D Pasquier… - Physical Review Letters, 2022 - APS
We address the long-standing problem of the ground state of 1 T-TaS 2 by computing the
correlated electronic structure of stacked bilayers using the GW+ EDMFT method …

Exploring the Charge Density Wave Phase of : Mott or Charge-Transfer Gap?

CJ Sayers, G Cerullo, Y Zhang, CE Sanders… - Physical Review Letters, 2023 - APS
1 T-TaSe 2 is widely believed to host a Mott metal-insulator transition in the charge density
wave (CDW) phase according to the spectroscopic observation of a band gap that extends …

Spin–orbit and exchange proximity couplings in graphene/1T-TaS2 heterostructure triggered by a charge density wave

K Szałowski, M Milivojević, D Kochan, M Gmitra - 2D Materials, 2023 - iopscience.iop.org
Proximity-induced fine features and spin-textures of the electronic bands in graphene-based
van der Waals heterostructures can be explored from the point of tailoring a twist angle …

Atomic Visualization of the 3D Charge Density Wave Stacking in 1T-TaS2 by Cryogenic Transmission Electron Microscopy

G Wang, X Yu, E Zhao, D Li, L Wang, J Lin - Nano Letters, 2023 - ACS Publications
Charge density waves (CDWs) in 1T-TaS2 maintain 2D ordering by forming periodic in-
plane star-of-David (SOD) patterns, while they also intertwined with orbital order in the c …

Two-dimensional charge density waves in (, Se, Te) from first principles

T Jiang, T Hu, GD Zhao, Y Li, S Xu, C Liu, Y Cui, W Ren - Physical Review B, 2021 - APS
Transition-metal dichalcogenides are rich in their structural phases, eg, 1 T-Ta S 2 and 1 T-
Ta Se 2 form charge density wave (CDW) under low temperature with interesting and exotic …

Stacking and spin order in a van der Waals Mott insulator 1T-TaS2

JW Park, J Lee, HW Yeom - Communications Materials, 2023 - nature.com
Quasi-two-dimensional charge density wave system of 1T-TaS2 has attracted recent interest
due to topological excitations, emergent superconductivity, ultrafast synaptic functionality …

Electronic structures and Mott state of epitaxial TaS2 monolayers

Q Tian, C Ding, X Qiu, Q Meng, K Wang, F Yu… - Science China Physics …, 2024 - Springer
Layered material TaS2 hosts multiple structural phases and exotic correlated quantum
states, including charge density wave (CDW), superconductivity, quantum spin liquid, and …