scholarly journals Interaction-driven transition between the Wigner crystal and the fractional Chern insulator in topological flat bands

2021 ◽  
Vol 104 (8) ◽  
Author(s):  
Michał Kupczyński ◽  
Błażej Jaworowski ◽  
Arkadiusz Wójs
Keyword(s):  
Wigner Crystal ◽  
Flat Bands

Emerging flat bands in large-angle twisted bi-layer graphene under pressures

Nanoscale ◽  
2021 ◽  
Author(s):  
Liangbing Ge ◽  
Ni Kun ◽  
Xiaojun Wu ◽  
Zhengping Fu ◽  
Yalin Lu ◽  
...  
Keyword(s):  
Large Angle ◽  
Magic Angle ◽  
Unconventional Superconductivity ◽  
Flat Bands ◽  
Layer Graphene

Recent experiments on magic-angle twisted bi-layer graphene have attracted an intensive attention due to exotic properties such as unconventional superconductivity and correlated insulation. These phenomena were often found at a...

scholarly journals Dirac node engineering and flat bands in doped Dirac materials

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Anna Pertsova ◽  
Peter Johnson ◽  
Daniel P. Arovas ◽  
Alexander V. Balatsky
Keyword(s):  
Flat Bands ◽  
Dirac Materials

scholarly journals Quantum transport in flat bands and supermetallicity

2021 ◽  
Vol 103 (7) ◽  
Author(s):  
G. Bouzerar ◽  
D. Mayou
Keyword(s):  
Quantum Transport ◽  
Flat Bands

scholarly journals The quantum Hall effect in the absence of disorder

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Kyung-Su Kim ◽  
Steven A. Kivelson
Keyword(s):  
Magnetic Field ◽  
Hall Effect ◽  
Quantum Hall Effect ◽  
Finite Interval ◽  
Quantum Hall ◽  
Wigner Crystal ◽  
Quasi Particle ◽  
Hall Conductance ◽  
Finite Extent

AbstractIt is widely held that disorder is essential to the existence of a finite interval of magnetic field in which the Hall conductance is quantized, i.e., for the existence of “plateaus” in the quantum Hall effect. Here, we show that the existence of a quasi-particle Wigner crystal (QPWC) results in the persistence of plateaus of finite extent even in the limit of vanishing disorder. Several experimentally detectable features that characterize the behavior in the zero disorder limit are also explored.

scholarly journals Tuning the flat bands of the kagome metal CoSn with Fe, In, or Ni doping

2021 ◽  
Vol 5 (4) ◽  
Author(s):  
B. C. Sales ◽  
W. R. Meier ◽  
A. F. May ◽  
J. Xing ◽  
J.-Q. Yan ◽  
...  
Keyword(s):  
Ni Doping ◽  
Flat Bands

scholarly journals Domain wall induced spin-polarized flat bands in antiferromagnetic topological insulators

2021 ◽  
Vol 103 (23) ◽  
Author(s):  
E. K. Petrov ◽  
V. N. Men'shov ◽  
I. P. Rusinov ◽  
M. Hoffmann ◽  
A. Ernst ◽  
...  
Keyword(s):  
Domain Wall ◽  
Topological Insulators ◽  
Flat Bands ◽  
Spin Polarized

scholarly journals Topological flat bands and correlated states in twisted monolayer-bilayer graphene

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Louk Rademaker ◽  
Ivan V. Protopopov ◽  
Dmitry A. Abanin
Keyword(s):  
Bilayer Graphene ◽  
Flat Bands

Moiré superlattices and related moiré excitons in twisted van der Waals heterostructures

2021 ◽  
Author(s):  
Yanping Liu ◽  
Cheng Zeng ◽  
Juan Yu ◽  
Jiahong Zhong ◽  
Bo Li ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Low Energy ◽  
Mott Insulators ◽  
Energy Research ◽  
Van Der Waals Heterostructures ◽  
Flat Bands ◽  
Recent Advances

Recent advances in moiré superlattices and moiré excitons, such as quantum emission arrays, low-energy flat bands, and Mott insulators, have rapidly attracted attention in the fields of optoelectronics, materials, and energy research.

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