Twisted van der waals quantum materials: Fundamentals, tunability, and applications

X Sun, M Suriyage, AR Khan, M Gao, J Zhao… - Chemical …, 2024 - ACS Publications
Twisted van der Waals (vdW) quantum materials have emerged as a rapidly developing field
of two-dimensional (2D) semiconductors. These materials establish a new central research …

Stacking order engineering of two-dimensional materials and device applications

C Fox, Y Mao, X Zhang, Y Wang, J Xiao - Chemical Reviews, 2023 - ACS Publications
Stacking orders in 2D van der Waals (vdW) materials dictate the relative sliding (lateral
displacement) and twisting (rotation) between atomically thin layers. By altering the stacking …

Collapse of layer dimerization in the photo-induced hidden state of 1T-TaS2

Q Stahl, M Kusch, F Heinsch, G Garbarino… - Nature …, 2020 - nature.com
Photo-induced switching between collective quantum states of matter is a fascinating rising
field with exciting opportunities for novel technologies. Presently, very intensively studied …

Stacking-driven gap formation in layered 1T-

T Ritschel, H Berger, J Geck - Physical Review B, 2018 - APS
The layered transition metal dichalcogenides which show an inherent tendency towards
charge density wave order are traditionally considered to realize rather two-dimensional …

Real-space visualization of a defect-mediated charge density wave transition

JL Hart, H Pan, S Siddique, N Schnitzer… - Proceedings of the …, 2024 - pnas.org
We study the coupled charge density wave (CDW) and insulator-to-metal transitions in the
2D quantum material 1T-TaS2. By applying in situ cryogenic 4D scanning transmission …

Observation of Anisotropic Strain-Wave Dynamics and Few-Layer Dephasing in MoS2 with Ultrafast Electron Microscopy

Y Zhang, DJ Flannigan - Nano letters, 2019 - ACS Publications
The large elastic strains that can be sustained by transition metal dichalcogenides (TMDs),
and the sensitivity of electronic properties to that strain, make these materials attractive …

Endotaxial stabilization of 2D charge density waves with long-range order

SH Sung, N Agarwal, I El Baggari, P Kezer… - Nature …, 2024 - nature.com
Charge density waves are emergent quantum states that spontaneously reduce crystal
symmetry, drive metal-insulator transitions, and precede superconductivity. In low …

In operando cryo-STEM of pulse-induced charge density wave switching in TaS2

JL Hart, S Siddique, N Schnitzer, SD Funni… - Nature …, 2023 - nature.com
The charge density wave material 1T-TaS2 exhibits a pulse-induced insulator-to-metal
transition, which shows promise for next-generation electronics such as memristive memory …

Two-dimensional charge order stabilized in clean polytype heterostructures

SH Sung, N Schnitzer, S Novakov, I El Baggari… - Nature …, 2022 - nature.com
Compelling evidence suggests distinct correlated electron behavior may exist only in clean
2D materials such as 1T-TaS2. Unfortunately, experiment and theory suggest that extrinsic …

Unravelling stacking order in epitaxial bilayer MX2 using 4D-STEM with unsupervised learning

AN Mehta, N Gauquelin, M Nord, A Orekhov… - …, 2020 - iopscience.iop.org
Following an extensive investigation of various monolayer transition metal dichalcogenides
(MX 2), research interest has expanded to include multilayer systems. In bilayer MX 2, the …