Tunable moiré materials for probing Berry physics and topology
Berry curvature physics and quantum geometric effects have been instrumental in
advancing topological condensed matter physics in recent decades. Although Landau level …
advancing topological condensed matter physics in recent decades. Although Landau level …
Superconductivity in twisted double bilayer graphene stabilized by WSe2
Identifying the essential components of superconductivity in graphene-based systems
remains a critical problem in two-dimensional materials research. This field is connected to …
remains a critical problem in two-dimensional materials research. This field is connected to …
Evolution of superconductivity in twisted graphene multilayers
The group of moiré graphene superconductors keeps growing, and by now it contains
twisted graphene multilayers as well as untwisted stacks. We analyze here the contribution …
twisted graphene multilayers as well as untwisted stacks. We analyze here the contribution …
Observation of a Chern insulator in crystalline ABCA-tetralayer graphene with spin-orbit coupling
Y Sha, J Zheng, K Liu, H Du, K Watanabe, T Taniguchi… - Science, 2024 - science.org
Degeneracies in multilayer graphene, including spin, valley, and layer degrees of freedom,
can be lifted by Coulomb interactions, resulting in rich broken-symmetry states. Here, we …
can be lifted by Coulomb interactions, resulting in rich broken-symmetry states. Here, we …
Observation of first-order quantum phase transitions and ferromagnetism in twisted double bilayer graphene
Twisted graphene multilayers are highly tunable flatband systems for develo** new
phases of matter. Thus far, while orbital ferromagnetism has been observed in valley …
phases of matter. Thus far, while orbital ferromagnetism has been observed in valley …
Emergent phases in graphene flat bands
Electronic correlations in two-dimensional materials play a crucial role in stabilising
emergent phases of matter. The realisation of correlation-driven phenomena in graphene …
emergent phases of matter. The realisation of correlation-driven phenomena in graphene …
Nonlinear anomalous Hall effects probe topological phase-transitions in twisted double bilayer graphene
Nonlinear anomalous (NLA) Hall effect is the Berry curvature dipole induced second-order
Hall voltage or temperature difference induced by a longitudinal electric field or temperature …
Hall voltage or temperature difference induced by a longitudinal electric field or temperature …
Spontaneous symmetry breaking and ghost states in two-dimensional fractional nonlinear media with non-Hermitian potential
M Zhong, Z Yan - Communications Physics, 2023 - nature.com
The interaction of fractional diffraction and parity-time (PT) symmetric would bring some
unique properties to certain physical system. Here we report a spontaneous symmetry …
unique properties to certain physical system. Here we report a spontaneous symmetry …
Topological flat bands, valley polarization, and interband superconductivity in magic-angle twisted bilayer graphene with proximitized spin-orbit couplings
We study theoretically the magic-angle twisted bilayer graphene with proximity-induced
Ising and Rashba spin-orbit couplings on the top layer. Topological flat bands (with three …
Ising and Rashba spin-orbit couplings on the top layer. Topological flat bands (with three …
Spin-orbit coupling-enhanced valley ordering of malleable bands in twisted bilayer graphene on WSe2
Recent experiments in magic-angle twisted bilayer graphene have revealed a wealth of
novel electronic phases as a result of interaction-driven spin-valley flavour polarisation. In …
novel electronic phases as a result of interaction-driven spin-valley flavour polarisation. In …