7 papers
Ferroelectric-tunable quantum nonlinearity of chiral Bloch electrons in a moiré system
Zitian Pan, Jundong Zhu, Yu Hong +7
Sliding ferroelectricity in van der Waals materials shows great potential for designing robust memory devices. However, its thermodynamic behaviors and the coupling with certain qu…
Electrically tunable circular photocurrent via local-field induced symmetry breaking at a metal-MoTe2 interface
Butian Zhang, Kexin Wang, Jun-Tao Ma +7
Transition metal dichalcogenides (TMDCs) constitute a promising platform for symmetry-engineered responses to circularly polarized light. The high crystal symmetry of centrosymmetr…
Observation of Integer and Fractional Chern insulators in high Chern number flatbands
Jingwei Dong, Le Liu, Jundong Zhu +11
Moiré flatbands with high Chern numbers (C>1) offer opportunities to study the fractional quantum anomalous Hall effects that go beyond the Landau level paradigm with C=1, which r…
Electric field tunable coupling strength and quantum metric hot spots in a moiré flatband superconductor
Le Liu, Yu Hong, Chengping Zhang +9
Superconductivity in flatband systems has attracted tremendous attention in condensed matter physics. Alternating twisted multilayer graphene presents a compelling multiband system…
Comprehensive Study of Phonon Chirality under Symmetry Constraints
Shuai Zhang, Zhiheng Huang, Muchen Du +3
Phonons are quanta of lattice vibrations, and their modes (linear, circular, or stationary) are symmetry-determined. Circularly polarized phonons, possessing nonzero angular moment…
Ultrathin GaO Tunneling Contact for 2D Transition-metal Dichalcogenides Transistor
Yun Li, Tinghe Yun, Bohan Wei +5
The development of two-dimensional (2D) transition metal dichalcogenides (TMDs) based transistors has been constrained by high contact resistance and inadequate current delivery, p…