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9 papers · 2 filters
An accurate description of the structural and electronic properties of twisted bilayer graphene-boron nitride heterostructures
Min Long, Pierre A. Pantaleón, Zhen Zhan +3
Twisted bilayer graphene (TBG) has taken the spotlight in the condensed matter community since the discovery of correlated phases at the so-called magic angle. Interestingly, the r…
Flat-band plasmons in twisted bilayer transition metal dichalcogenides
Xueheng Kuang, Zhen Zhan, Shengjun Yuan
Twisted bilayer transition metal dichalcogenides are ideal platforms to study flat-band phenomena. In this paper, we investigate flat-band plasmons in the hole-doped twisted bilaye…
Electrostatic interactions in twisted bilayer graphene
Tommaso Cea, Pierre A. Pantaleón, Niels R. Walet +1
The effects of the long range electrostatic interaction in twisted bilayer graphene are described using the Hartree-Fock approximation. The results show a significant dependence of…
Superconductivity from Repulsive Interactions in Rhombohedral Trilayer Graphene: a Kohn-Luttinger-Like Mechanism
Tommaso Cea, Pierre A. Pantaleón, Vo Tien Phong +1
We study the emergence of superconductivity in rhombohedral trilayer graphene due purely to the long-range Coulomb repulsion. This repulsive-interaction-driven phase in rhombohedra…
Magic angle and plasmon mode engineering in twisted trilayer graphene with pressure
Zewen Wu, Xueheng Kuang, Zhen Zhan +1
Recent experimental and theoretical investigations demonstrate that twisted trilayer graphene (tTLG) is a highly tunable platform to study the correlated insulating states, ferroma…
Band Structure and Superconductivity in Twisted Trilayer Graphene
Vo Tien Phong, Pierre A. Pantaleón, Tommaso Cea +1
We study the symmetries of twisted trilayer graphene's band structure under various extrinsic perturbations, and analyze the role of long-range electron-electron interactions near…