Superconductivity and correlated phases in non-twisted bilayer and trilayer graphene

PA Pantaleón, A Jimeno-Pozo, H Sainz-Cruz… - Nature Reviews …, 2023 - nature.com
Twisted bilayer graphene has a rich phase diagram, including superconductivity. Recently,
an unexpected discovery has been the observation of superconductivity in non-twisted …

Correlated insulator and Chern insulators in pentalayer rhombohedral-stacked graphene

T Han, Z Lu, G Scuri, J Sung, J Wang, T Han… - Nature …, 2024 - nature.com
Rhombohedral-stacked multilayer graphene hosts a pair of flat bands touching at zero
energy, which should give rise to correlated electron phenomena that can be tuned further …

Anomalous Hall crystals in rhombohedral multilayer graphene. I. Interaction-driven Chern bands and fractional quantum Hall states at zero magnetic field

J Dong, T Wang, T Wang, T Soejima, MP Zaletel… - Physical Review Letters, 2024 - APS
Recent experiments on rhombohedral pentalayer graphene with a substrate-induced moiré
potential have identified both Chern insulators and fractional quantum Hall states at zero …

Sliding van der Waals polytypes

M Vizner Stern, S Salleh Atri, M Ben Shalom - Nature Reviews Physics, 2024 - nature.com
Compared with electronic phase transitions, structural phase transitions of crystals are
challenging to control owing to the energy cost of breaking dense solid bonds. Recently …

Gate-tunable anomalous Hall effect in Bernal tetralayer graphene

H Chen, A Arora, JCW Song, KP Loh - Nature Communications, 2023 - nature.com
Large spin-orbit coupling is often thought to be critical in realizing magnetic order-locked
charge transport such as the anomalous Hall effect (AHE). Recently, artificial stacks of two …

Signatures of chiral superconductivity in rhombohedral graphene

T Han, Z Lu, Y Yao, L Shi, J Yang, J Seo, S Ye… - arXiv preprint arXiv …, 2024 - arxiv.org
Chiral superconductors are unconventional superconducting states that break time reversal
symmetry spontaneously and typically feature Cooper pairing at non-zero angular …

Spontaneous electric polarization in graphene polytypes

SS Atri, W Cao, B Alon, N Roy, MV Stern… - Advanced Physics …, 2024 - Wiley Online Library
Spontaneous electric polarization is recently observed in multilayered van der Waals
stacked materials, arising from a symmetry breaking in a unit cell with two or more …

Electrostatic fate of -layer moiré graphene

K Kolář, Y Zhang, S Nadj-Perge, F von Oppen… - Physical Review B, 2023 - APS
Twisted N-layer graphene (TNG) moiré structures have recently been shown to exhibit
robust superconductivity similar to twisted bilayer graphene (TBG). In particular for N= 4 and …

Superconductivity in monolayer and few-layer graphene. II. Topological edge states and Chern numbers

A Crépieux, E Pangburn, L Haurie, OA Awoga… - Physical Review B, 2023 - APS
We study the emergence of electronic edge states in superconducting monolayer, bilayer,
and trilayer graphene for both spin-singlet and spin-triplet superconducting order …

Superconductivity and magnetism in the surface states of ABC-stacked multilayer graphene

OA Awoga, T Löthman, AM Black-Schaffer - Physical Review B, 2023 - APS
ABC-stacked multilayer graphene (ABC-MLG) exhibits topological surface flat bands with a
divergent density of states, leading to many-body instabilities at charge neutrality. Here, we …