694 citations · 704 across the 11 of their papers we have counts for
11 papers
Layer-polarized Transport via Gate-defined 1D and 0D PN Junctions in Double Bilayer Graphene
Wei Ren, Xi Zhang, Shiyu Guo +6
We fabricate twisted double bilayer graphene devices with zero twist angle and a set of local top and bottom gates aligned perpendicularly to each other. A 1D PN junction can be el…
Ferroelectric Quantum Point Contact in Twisted Transition Metal Dichalcogenides
Wei Ren, Shiyu Guo, Daochen Long +8
In twisted transition metal dichalcogenides (tTMDs), atomic reconstruction gives rise to moiré domains with alternating ferroelectric polarization, whose domain size and overall el…
Stability diagram of layer-polarized quantum Hall states in twisted trilayer graphene
Konstantin Davydov, Daochen Long, Jack Alexander Tavakley +3
In the twisted trilayer graphene (tTLG) platform, the rich beating patterns between the three graphene layers give rise to a plethora of new length scales and reconstructed electro…
Tunable atomically enhanced moiré Berry curvatures in twisted triple bilayer graphene
Konstantin Davydov, Ziyan Zhu, Noah Friedman +8
We report a twisted triple bilayer graphene platform consisting of three units of Bernal bilayer graphene consecutively twisted at 1.49° and 1.68°. We demonstrate the atomic recons…
Easy-to-configure zero-dimensional valley-chiral modes in a graphene point junction
Konstantin Davydov, Xi Zhang, Wei Ren +6
The valley degree of freedom in 2D materials can be manipulated for low-dissipation quantum electronics called valleytronics. At the boundary between two regions of bilayer graphen…
Electron Collimation in Twisted Bilayer Graphene via Gate-defined Moiré Barriers
Wei Ren, Xi Zhang, Ziyan Zhu +6
Electron collimation via a graphene pn-junction allows electrostatic control of ballistic electron trajectories akin to that of an optical circuit. Similar manipulation of novel co…
Unconventional domain tessellations in moiré-of-moiré lattices
Daesung Park, Changwon Park, Kunihiro Yananose +18
Imposing incommensurable periodicity on the periodic atomic lattice can lead to complex structural phases consisting of locally periodic structure bounded by topological defects. T…
Tunable Inter-Moiré Physics in Consecutively-Twisted Trilayer Graphene
Wei Ren, Konstantin Davydov, Ziyan Zhu +6
We fabricate a twisted trilayer graphene device with consecutive twist angles of 1.33 and 1.64 degrees, in which we electrostatically tune the electronic states from each of the tw…
Transport Study of Charge Carrier Scattering in Monolayer WSe
Andrew Y. Joe, Kateryna Pistunova, Kristen Kaasbjerg +9
Employing flux-grown single crystal WSe, we report charge carrier scattering behaviors measured in -BN encapsulated monolayer field effect transistors. We perform quantum tr…
Imaging electron flow and quantum dot formation in MoS2 nanostructures
Sagar Bhandari, Ke Wang, Kenji Watanabe +3
Among newly discovered two-dimensional (2D) materials, semiconducting ultrathin sheets of MoS2 show potential for nanoelectronics. However, the carrier mobility in MoS2 is limited…
Observation of the Dirac fluid and the breakdown of the Wiedemann-Franz law in graphene
Jesse Crossno, Jing K. Shi, Ke Wang +9
Interactions between particles in quantum many-body systems can lead to collective behavior described by hydrodynamics. One such system is the electron-hole plasma in graphene near…