Strong correlations and d+id superconductivity in twisted bilayer graphene

By D. Kennes, J. Lischner, C. Karrasch. Physical review B, 2018

166 citations recorded by the source corpus.

We compute the phase diagram of twisted bilayer graphene near the magic angle where the occurrence of flat bands enhances the effects of electron-electron interactions and thus unleashes strongly-correlated phenomena. Most importantly, we find a crossover between d+id superconductivity and Mott insulating behavior near half-filling of the lowest electron band when the temperature is increased. This is consistent with recent experiments. Our results are obtained using unbiased many-body renormalization group techniques combined with a mean-field analysis of the effective couplings.

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

View Paper: https://www.semanticscholar.org/paper/e384b8fdbfcf7595634e457822a0c03f963807c7

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. Yi-Zhuang You
2. Ashvin Vishwanath
3. A. Nahum
4. T. Senthil
5. Matthew Fisher
6. Xianhui Chen
7. E. Witten
8. V. Khemani

In Condensed Matter Physics

1. Ashvin Vishwanath
2. Yi-Zhuang You
3. S. Sachdev

In Materials Chemistry

1. Yi-Zhuang You
2. Ashvin Vishwanath
3. Xianhui Chen

Citations in the corpus

• Superconductivity from valley fluctuations and approximate SO(4) symmetry in a weak coupling theory of twisted bilayer graphene (2018, background): “[103] Finally, we would like to comment on the connection to Ref.”