Valley-Polarized Quantum Anomalous Hall State in Moiré Heterobilayers

YM Xie, CP Zhang, JX Hu, KF Mak, KT Law - Physical Review Letters, 2022 - APS
Moiré heterobilayer transition metal dichalcogenides (TMDs) emerge as an ideal system for
simulating the single-band Hubbard model and interesting correlated phases have been …

Subcycle mid-infrared electric-field-driven scanning tunneling microscopy with a time resolution higher than 30 fs

Y Arashida, H Mogi, M Ishikawa, I Igarashi… - Acs …, 2022 - ACS Publications
Electric-field-driven scanning tunneling microscopy (STM) that uses carrier envelope phase-
controlled pulses in the THz region (THz-STM) has been attracting considerable attention …

Photoinduced Structural Dynamics of 2H-MoTe2 Under Extremely High-Density Excitation Conditions

T Fukuda, U Ozaki, S Jeong, Y Arashida… - The Journal of …, 2023 - ACS Publications
Through interband photoexcitation, a representative transition metal dichalcogenide (TMD)
material, MoTe2, can undergo various phenomena such as photothermal conversion, phase …

Atomically thin van der Waals semiconductors—a theoretical perspective

C Gies, A Steinhoff - Laser & Photonics Reviews, 2021 - Wiley Online Library
Abstract 2D semiconductors and their heterostructures have developed into a flourishing
research field. A more or less simultaneous start of experimental and theoretical …

Smooth periodic gauge satisfying crystal symmetry and periodicity to study high-harmonic generation in solids

S Jiang, C Yu, J Chen, Y Huang, R Lu, CD Lin - Physical Review B, 2020 - APS
Intense lasers can easily drive nonadiabatic transitions of excited electron wave packets
across the Brillouin zones, thus transition dipole moments (TDM) between energy bands of …

Massive Dirac fermions in moiré superlattices: A route towards topological flat minibands and correlated topological insulators

Y Su, H Li, C Zhang, K Sun, SZ Lin - Physical Review Research, 2022 - APS
We demonstrate a generic mechanism to realize topological flat minibands by confining
massive Dirac fermions in a periodic moiré potential, which can be achieved in a …

Ultrafast, high resolution spatiotemporal mapping of energy transport dynamics for determination of energy transport properties in silicon

M Segovia, X Xu - Physical Review B, 2023 - APS
The spatiotemporal dynamics of energy carriers in silicon is studied under ultrafast laser
excitation. A subpicosecond temporal resolution and precise, 10 nm spatial resolution …

[HTML][HTML] Carrier-specific dynamics in 2H-MoTe2 observed by femtosecond soft x-ray absorption spectroscopy using an x-ray free-electron laser

A Britz, AR Attar, X Zhang, HT Chang, C Nyby… - Structural …, 2021 - pubs.aip.org
Femtosecond carrier dynamics in layered 2H-MoTe 2 semiconductor crystals have been
investigated using soft x-ray transient absorption spectroscopy at the x-ray free-electron …

Coulomb enhancement of high harmonic generation in monolayer transition metal dichalcogenides

J Hader, J Neuhaus, JV Moloney, SW Koch - Optics Letters, 2023 - opg.optica.org
High harmonic generation (HHG) in monolayer MoS_2 is studied using fully microscopic
many-body models based on the semiconductor Bloch equations and density functional …

[HTML][HTML] Coherent optical response driven by non-equilibrium electron–phonon dynamics in a layered transition-metal dichalcogenide

T Fukuda, K Makino, Y Saito, P Fons, A Ando, T Mori… - APL Materials, 2024 - pubs.aip.org
Layered transition-metal dichalcogenides (TMDs) are model systems to explore ultrafast
many-body interactions and various nonlinear optical phenomena. For the application of …