Intelligent infrared sensing enabled by tunable moiré quantum geometry

C Ma, S Yuan, P Cheung, K Watanabe, T Taniguchi… - Nature, 2022 - nature.com
Quantum geometric properties of Bloch wave functions in solids, that is, Berry curvature and
the quantum metric, are known to significantly influence the ground-and excited-state …

Orderly disorder in magic-angle twisted trilayer graphene

S Turkel, J Swann, Z Zhu, M Christos, K Watanabe… - Science, 2022 - science.org
Magic-angle twisted trilayer graphene (TTG) has recently emerged as a platform to engineer
strongly correlated flat bands. We reveal the normal-state structural and electronic properties …

Progress and prospects in two-dimensional magnetism of van der Waals materials

Y Ahn, X Guo, S Son, Z Sun, L Zhao - Progress in Quantum Electronics, 2024 - Elsevier
Abstract Two-dimensional (2D) magnetism in van der Waals (vdW) atomic crystals and
moiré superlattices has emerged as a topic of tremendous interest in the fields of condensed …

Theory of zero-field superconducting diode effect in twisted trilayer graphene

HD Scammell, JIA Li, MS Scheurer - 2D Materials, 2022 - iopscience.iop.org
In a recent experiment (Lin et al 2021 arXiv: 2112.07841 [cond-mat. str-el]), the
superconducting phase hosted by a heterostructure of mirror-symmetric twisted trilayer …

Multiple and spectrally robust photonic magic angles in reconfigurable α-MoO3 trilayers

J Duan, G Álvarez-Pérez, C Lanza, K Voronin… - Nature Materials, 2023 - nature.com
The emergence of a topological transition of the polaritonic dispersion in twisted bilayers of
anisotropic van der Waals materials at a given twist angle—the photonic magic angle …

Unidirectional electron–phonon coupling in the nematic state of a kagome superconductor

P Wu, Y Tu, Z Wang, S Yu, H Li, W Ma, Z Liang… - Nature Physics, 2023 - nature.com
Electronic nematicity has been commonly observed in juxtaposition with unconventional
superconductivity. Understanding the nature of the nematic state and its consequences for …

Correlated insulators, semimetals, and superconductivity in twisted trilayer graphene

M Christos, S Sachdev, MS Scheurer - Physical Review X, 2022 - APS
Motivated by recent experiments indicating strong superconductivity and intricate correlated
insulating and flavor-polarized physics in mirror-symmetric twisted-trilayer graphene, we …

Many-body ground states from decomposition of ideal higher Chern bands: Applications to chirally twisted graphene multilayers

J Dong, PJ Ledwith, E Khalaf, JY Lee… - Physical Review …, 2023 - APS
Motivated by the higher Chern bands of twisted graphene multilayers, we consider flat
bands with arbitrary Chern number C with ideal quantum geometry. While C> 1 bands differ …

Enhanced superconducting diode effect due to coexisting phases

S Banerjee, MS Scheurer - Physical Review Letters, 2024 - APS
The superconducting diode effect refers to an asymmetry in the critical supercurrent J c (n^)
along opposite directions, J c (n^)≠ J c (-n^). While the basic symmetry requirements for this …

Symmetry breaking and anomalous conductivity in a double-moiré superlattice

Y Li, M Xue, H Fan, CF Gao, Y Shi, Y Liu… - Nano Letters, 2022 - ACS Publications
In a two-dimensional moiré superlattice, the atomic reconstruction of constituent layers could
introduce significant modifications to the lattice symmetry and electronic structure at small …