165 citations · 403 across the 13 of their papers we have counts for
13 papers
Insulator-to-Metal Transition and Anomalously Slow Hot Carrier Cooling in a Photo-doped Mott Insulator
Usama Choudhry, Jin Zhang, Kewen Huang +8
Photo-doped Mott insulators can exhibit novel photocarrier transport and relaxation dynamics and non-equilibrium phases. However, time-resolved real-space imaging of these processe…
Non-linear optics at twist interfaces in h-BN/SiC heterostructures
Abhijit Biswas, Rui Xu, Gustavo A. Alvarez +24
Understanding the emergent electronic structure in twisted atomically thin layers has led to the exciting field of twistronics. However, practical applications of such systems are…
A time-based Chern number in periodically-driven systems in the adiabatic limit
I-Te Lu, Dongbin Shin, Umberto De Giovannini +4
To define the topology of driven systems, recent works have proposed synthetic dimensions as a way to uncover the underlying parameter space of topological invariants. Using time a…
Ultrafast Spin Dynamics and Photoinduced Insulator-to-Metal Transition in -
Jin Zhang, Nicolas Tancogne-Dejean, Lede Xian +4
Laser-induced ultrafast demagnetization is a phenomenon of utmost interest and attracts significant attention because it enables potential applications in ultrafast optoelectronics…
Quadrupolar excitons in a tunnel-coupled van der Waals heterotrilayer
Weijie Li, Zach Hadjri, Jin Zhang +7
Strongly bound excitons and many-body interactions between them determine light-matter interactions in van der Waals (vdW) heterostructures of 2D semiconductors. Unlike fundamental…
Probing phonon dynamics with multi-dimensional high harmonic carrier envelope phase spectroscopy
Ofer Neufeld, Jin Zhang, Umberto De Giovannini +2
We explore pump-probe high harmonic generation (HHG) from monolayer hexagonal-Boron-Nitride, where a terahertz pump excites coherent optical phonons that are subsequently probed by…
Local Sensing of Correlated Electrons in Dual-moiré Heterostructures using Dipolar Excitons
Weijie Li, Luka M. Devenica, Jin Zhang +6
Moiré heterostructures are rapidly emerging as a tunable platform to study correlated electronic phenomena. Discovery of exotic quantum phases in moiré systems requires novel probe…
Nanometer-scale lateral p-n junctions in graphene/-RuCl heterostructures
Daniel J. Rizzo, Sara Shabani, Bjarke S. Jessen +13
The ability to create high-quality lateral p-n junctions at nanometer length scales is essential for the next generation of two-dimensional (2D) electronic and plasmonic devices. U…
Phonon-Enhanced Nonlinearities in Hexagonal Boron Nitride
Jared S. Ginsberg, M. Mehdi Jadidi, Jin Zhang +10
We investigate optical nonlinearities that are induced and enhanced due to the strong phonon resonance in hexagonal boron nitride. We predict and observe large sub-picosecond durat…
Identification of the Mott insulating CDW state in 1T-TaS
Dongbin Shin, Nicolas Tancogne-Dejean, Jin Zhang +3
We investigate the low-temperature charge-density-wave (CDW) state of bulk TaS with a fully self-consistent DFT+U approach, over which the controversy has remained unresolved r…
Engineering Three Dimensional Moiré Flat Bands
Lede Xian, Ammon Fischer, Martin Claassen +3
We demonstrate that the concept of moiré flat bands can be generalized to achieve electronic band engineering in all three spatial dimensions. For many two dimensional van der Waal…
Graphene/-RuCl: An Emergent 2D Plasmonic Interface
Daniel J. Rizzo, Bjarke S. Jessen, Zhiyuan Sun +16
Work function-mediated charge transfer in graphene/-RuCl heterostructures has been proposed as a strategy for generating highly-doped 2D interfaces. In this geometry, graphe…
Nonlinear twistoptics at symmetry-broken interfaces
Kaiyuan Yao, Nathan R. Finney, Jin Zhang +17
Broken symmetries induce strong nonlinear optical responses in materials and at interfaces. Twist angle can give complete control over the presence or lack of inversion symmetry at…