scholarly journals Optical and plasmonic properties of twisted bilayer graphene: Impact of interlayer tunneling asymmetry and ground-state charge inhomogeneity

2020 ◽  
Vol 102 (12) ◽  
Author(s):  
Pietro Novelli ◽  
Iacopo Torre ◽  
Frank H. L. Koppens ◽  
Fabio Taddei ◽  
Marco Polini
Keyword(s):  
Ground State ◽  
Bilayer Graphene ◽  
Twisted Bilayer Graphene ◽  
State Charge

Ground state superconducting pair correlations in twisted bilayer graphene

2019 ◽  
Vol 34 (01) ◽  
pp. 2050016 ◽  
Author(s):  
Lufeng Zhang ◽  
Tongyun Huang ◽  
Ying Liang ◽  
Tianxing Ma
Keyword(s):  
Ground State ◽  
Quantum Monte Carlo ◽  
Bilayer Graphene ◽  
Pairing Symmetry ◽  
Honeycomb Lattice ◽  
Magic Angle ◽  
Pairing Interaction ◽  
Twisted Bilayer Graphene ◽  
Effective Pairing Interaction ◽  
Effective Pairing

Motivated by the recent novel electronic features extracted from the magic-angle graphene superlattices, we studied the ground state superconducting pairing correlations within the Hubbard model on a twisted bilayer honeycomb lattice. Using Constrained-Path Quantum Monte Carlo method, we found that the [Formula: see text] pairing correlation dominates over other pairing patterns among various electron fillings and interaction strengths, and the effective pairing interaction was enhanced as the on-site Coulomb interaction increased. We further examined the effect of the nearest neighbor interaction [Formula: see text], and the effective pairing interaction with [Formula: see text] pairing symmetry was also enhanced by either a repulsive or attractive interaction. Our intensive numerical results confirm the interaction driven superconductivity with a dominant [Formula: see text] pairing symmetry in twisted bilayer graphene.

scholarly journals Correlation-Induced Insulating Topological Phases at Charge Neutrality in Twisted Bilayer Graphene

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuan Da Liao ◽  
Jian Kang ◽  
Clara N. Breiø ◽  
Xiao Yan Xu ◽  
Han-Qing Wu ◽  
...  
Keyword(s):  
Bilayer Graphene ◽  
Topological Phases ◽  
Charge Neutrality ◽  
Twisted Bilayer Graphene

scholarly journals Strange metal behavior of the Hall angle in twisted bilayer graphene

2021 ◽  
Vol 103 (24) ◽  
Author(s):  
Rui Lyu ◽  
Zachary Tuchfeld ◽  
Nishchhal Verma ◽  
Haidong Tian ◽  
Kenji Watanabe ◽  
...  
Keyword(s):  
Bilayer Graphene ◽  
Hall Angle ◽  
Twisted Bilayer Graphene

scholarly journals Correlated insulators in twisted bilayer graphene

2021 ◽  
Vol 103 (12) ◽  
Author(s):  
Ipsita Mandal ◽  
Jia Yao ◽  
Erich J. Mueller
Keyword(s):  
Bilayer Graphene ◽  
Twisted Bilayer Graphene

scholarly journals Disorder in twisted bilayer graphene

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Justin H. Wilson ◽  
Yixing Fu ◽  
S. Das Sarma ◽  
J. H. Pixley
Keyword(s):  
Bilayer Graphene ◽  
Twisted Bilayer Graphene

scholarly journals Unfolding energy spectra of double-periodicity two-dimensional systems: Twisted bilayer graphene and MoS2 on graphene

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Yu-ichiro Matsushita ◽  
Hirofumi Nishi ◽  
Jun-ichi Iwata ◽  
Taichi Kosugi ◽  
Atsushi Oshiyama
Keyword(s):  
Bilayer Graphene ◽  
Energy Spectra ◽  
Two Dimensional ◽  
Twisted Bilayer Graphene
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