Faithful tight-binding models and fragile topology of magic-angle bilayer graphene

By H. Po, Liujun Zou, T. Senthil, Ashvin Vishwanath. Physical review B, 2018

314 citations recorded by the source corpus.

The authors report on the construction of a faithful tight-binding model for twisted bilayer graphene, which led them to a precise characterization of its band topology.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/5c8336881a6aba2def0376d7497ace2797ce6c48

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. P. Törmä
2. S. Peotta
3. Bogdan Andrei Bernevig
4. Jun-Woo Ahn
5. Sungjoon Park
6. Bohm-Jung Yang
7. Peter Kuchment
8. E. Witten

In Materials Chemistry

1. Jun-Woo Ahn
2. Bogdan Andrei Bernevig
3. Sungjoon Park
4. P. Törmä
5. Bohm-Jung Yang
6. S. Peotta

Citations in the corpus

• Failure of Nielsen-Ninomiya Theorem and Fragile Topology in Two-Dimensional Systems with Space-Time Inversion Symmetry: Application to Twisted Bilayer Graphene at Magic Angle (2018, methodology): “In [70], tight-binding models were constructed explicitly by adding trivial bands to the two nearly flat bands, which demonstrates the fragility of the Wannier obstruction for the flat bands.”
• Flat bands, strange metals and the Kondo effect (2023, unknown): “This enables the mapping of the periodic Anderson model to a Kondo lattice model, in which the correlations are encoded in an exchange interaction between the local moments of the f states and conduction electron spins.”