Narrow bands, electrostatic interactions and band topology in graphene stacks

@article{Pantalen2021NarrowBE,
  title={Narrow bands, electrostatic interactions and band topology in graphene stacks},
  author={Pierre A. Pantale{\'o}n and Tommaso Cea and Rory Brown and Niels R. Walet and Francisco Guinea},
  journal={2D Materials},
  year={2021},
  volume={8}
}
The occurrence of superconducting and insulating phases is well-established in twisted graphene bilayers, and they have also been reported in other arrangements of graphene layers. We investigate three such arrangements: untwisted AB bilayer graphene on an hBN substrate, two graphene bilayers twisted with respect to each other, and a single ABC stacked graphene trilayer on an hBN substrate. Narrow bands with different topology occur in all cases, producing a high density of states which… Expand
1 Citations
Flat bands, electron interactions, and magnetic order in magic-angle mono-trilayer graphene
Zachary A. H. Goodwin, ∗ Lennart Klebl, ∗ Valerio Vitale, Xia Liang, Vivek Gogtay, Xavier van Gorp, Dante M. Kennes, 3 Arash A. Mostofi, and Johannes Lischner Departments of Materials and Physics andExpand

References

SHOWING 1-10 OF 142 REFERENCES
Physical Review B 102
  • 045107
  • 2020
Physical Review B 100
  • 205113
  • 2019
Physical Review B 98
  • 235158
  • 2018
and E
  • Tutuc, “Topological edge transport in twisted double-bilayer graphene,”
  • 2021
Nature Physics 16
  • 520
  • 2020
Electric field–tunable superconductivity in alternating-twist magic-angle trilayer graphene
TLDR
By tuning the doping level and displacement field, it is found that superconducting regimes occur in conjunction with flavor polarization of moiré bands and are bounded by a van Hove singularity at high displacement fields. Expand
Flat bands, electron interactions, and magnetic order in magic-angle mono-trilayer graphene
Zachary A. H. Goodwin, ∗ Lennart Klebl, ∗ Valerio Vitale, Xia Liang, Vivek Gogtay, Xavier van Gorp, Dante M. Kennes, 3 Arash A. Mostofi, and Johannes Lischner Departments of Materials and Physics andExpand
Half and quarter metals in rhombohedral trilayer graphene.
TLDR
The results show that rhombohedral graphene is an ideal platform for well-controlled tests of many-body theory, and reveal magnetism in moiré materials4,5,9,10 to be fundamentally itinerant in nature. Expand
Magnetic ordering tendencies in hexagonal boron nitride-bilayer graphene moir\'e structures
Maria Spethmann,1 Carsten Honerkamp,1 and Dante M. Kennes2, 3 Institute for Theoretical Solid State Physics, RWTH Aachen University, and JARA Fundamentals of Future Information Technology, 52056Expand
Moiréless correlations in ABCA graphene
TLDR
It is shown that ABCA graphene hosts surface topological helical edge states at natural interfaces with ABAB graphene which can be turned on and off with gate voltage, implying that small-angle twisted double-bilayer graphene is an ideal programmable topological quantum material. Expand
...
1
2
3
4
5
...