284 citations · 995 across the 13 of their papers we have counts for
13 papers
Independently Tunable Flat Bands and Correlations in a Graphene Double Moiré System
Yimeng Wang, Jihang Zhu, G. William Burg +6
We report on a double moiré system consisting of four graphene layers, where the top and bottom pairs form small-twist-angle bilayer graphene, and the middle interface has a large…
Emergence of Interlayer Coherence in Twist-Controlled Graphene Double Layers
Kenneth Lin, Nitin Prasad, G. William Burg +6
We report enhanced interlayer tunneling with reduced linewidth at zero interlayer bias in a twist-controlled double monolayer graphene heterostructure in the quantum Hall regime, w…
Emergence of Correlations in Alternating Twist Quadrilayer Graphene
G. William Burg, Eslam Khalaf, Yimeng Wang +3
Recently, alternating twist multilayer graphene (ATMG) has emerged as a family of moiré systems that share several fundamental properties with twisted bilayer graphene, and are exp…
Quantum Lifetime Spectroscopy and Magnetotunneling in Double Bilayer Graphene Heterostructures
Nitin Prasad, G. William Burg, Kenji Watanabe +3
We describe a tunneling spectroscopy technique in a double bilayer graphene heterostructure where momentum-conserving tunneling between different energy bands serves as an energy f…
Bulk and Edge Properties of Twisted Double-Bilayer Graphene
Yimeng Wang, Jonah Herzog-Arbeitman, G. William Burg +6
The emergence of controlled, two-dimensional moiré materials has uncovered a new platform for investigating topological physics. Twisted double bilayer graphene (TDBG) has been pre…
Emergent Symmetry and Valley Chern Insulator in Twisted Double-Bilayer Graphene
Yimeng Wang, G. William Burg, Biao Lian +4
Theoretical calculations show that twisted double bilayer graphene (TDBG) under a transverse electric field develops a valley Chern number 2 at charge neutrality. Using thermodynam…
Correlated Insulating States in Twisted Double Bilayer Graphene
G. William Burg, Jihang Zhu, Takashi Taniguchi +3
We present a combined experimental and theoretical study of twisted double bilayer graphene with twist angles between 1° and 1.35°. Consistent with moiré band structure calculation…
Tunneling and Fluctuating Electron-Hole Cooper Pairs in Double Bilayer Graphene
Dmitry K. Efimkin, G. William Burg, Emanuel Tutuc +1
A strong low-temperature enhancement of the tunneling conductance between graphene bilayers has been reported recently, and interpreted as a signature of equilibrium electron-hole…
Highly Valley-Polarized Singlet and Triplet Interlayer Excitons in van der Waals Heterostructure
Long Zhang, Rahul Gogna, G. William Burg +6
Two-dimensional semiconductors feature valleytronics phenomena due to locking of the spin and momentum valley of the electrons. However, the valley polarization is intrinsically li…
Interlayer Exciton Laser with Extended Spatial Coherence in an Atomically-Thin Heterostructure
Eunice Y. Paik, Long Zhang, G. William Burg +3
Two-dimensional semiconductors have emerged as a new class of materials for nanophotonics for their strong exciton-photon interaction and flexibility for engineering and integratio…
Spin-Conserving Resonant Tunneling in Twist-Controlled WSe2-hBN-WSe2 Heterostructures
Kyounghwan Kim, Nitin Prasad, Hema C. P. Movva +7
We investigate interlayer tunneling in heterostructures consisting of two tungsten diselenide (WSe2) monolayers with controlled rotational alignment, and separated by hexagonal bor…
Strongly enhanced tunneling at total charge neutrality in double bilayer graphene-WSe heterostructures
G. William Burg, Nitin Prasad, Kyounghwan Kim +5
We report the experimental observation of strongly enhanced tunneling between graphene bilayers through a WSe barrier when the graphene bilayers are populated with carriers of…
Coherent Interlayer Tunneling and Negative Differential Resistance with High Current Density in Double Bilayer Graphene-WSe2 Heterostructures
G. William Burg, Nitin Prasad, Babak Fallahazad +8
We demonstrate gate-tunable resonant tunneling and negative differential resistance between two rotationally aligned bilayer graphene sheets separated by bilayer WSe2. We observe l…