Moiré Surface States and Enhanced Superconductivity in Topological Insulators
Physical Review X, 2021 Recently, moiré superlattices have been found on the surface of topological insulators due to the rotational misalignment of topmost layers. In this work, we study the effects of moiré superlattices on the topological surface states using a continuum ...
Taige Wang, Noah F. Q. Yuan, Liang Fu
doaj +1 more source
Signatures of moir\'e-trapped valley excitons in MoSe$_2$/WSe$_2$ heterobilayers [PDF]
, 2018 The creation of moir\'e patterns in crystalline solids is a powerful approach to manipulate their electronic properties, which are fundamentally influenced by periodic potential landscapes. In 2D materials, a moir\'e pattern with a superlattice potential
Mandrus, David +8 more
core +2 more sources
Giant ferroelectric polarization in a bilayer graphene heterostructure
Nature Communications, 2022 Interfacial ferroelectricity may emerge in moiré superlattices. Here, the authors find that the polarized charge is much larger than the capacity of the moiré miniband and the associated anomalous screening exists outside the band.
Ruirui Niu +19 more
doaj +1 more source
Ballistic miniband conduction in a graphene superlattice [PDF]
, 2016 Rational design of artificial lattices yields effects unavailable in simple solids, and vertical superlattices of multilayer semiconductors are already used in optical sensors and emitters.
Fal'ko, Vladimir I. +6 more
core +2 more sources
Emerging Characteristics and Properties of Moiré Materials
Nanomaterials, 2023 In recent years, scientists have conducted extensive research on Moiré materials and have discovered some compelling properties. The Moiré superlattice allows superconductivity through flat-band and strong correlation effects.
Shaofeng Wang +3 more
doaj +1 more source
Theory-assisted determination of nano-rippling and impurities in atomic resolution images of angle-mismatched bilayer graphene [PDF]
, 2018 Ripples and impurity atoms are universally present in 2D materials, limiting carrier mobility, creating pseudo–magnetic fields, or affecting the electronic and magnetic properties.
Baddorf, Arthur P. +10 more
core +1 more source
Brightened spin-triplet interlayer excitons and optical selection rules in van der Waals heterobilayers [PDF]
, 2018 We investigate the optical properties of spin-triplet interlayer excitons in heterobilayer transition metal dichalcogenides in comparison with the spin-singlet ones.
Liu, Gui-Bin, Yao, Wang, Yu, Hongyi
core +2 more sources
Kitaev spin-orbital bilayers and their moiré superlattices
npj Quantum Materials, 2023 We determine the phase diagram of a bilayer, Yao-Lee spin-orbital model with inter-layer interactions (J), for several stackings and moiré superlattices. For AA stacking, a gapped $${{\mathbb{Z}}}_{2}$$ Z 2 quantum spin liquid phase emerges at a finite J
Emilian Marius Nica +4 more
doaj +1 more source
Tailoring excitonic states of van der Waals bilayers through stacking configuration, band alignment and valley-spin [PDF]
, 2019 Excitons in monolayer semiconductors have large optical transition dipole for strong coupling with light field. Interlayer excitons in heterobilayers, with layer separation of electron and hole components, feature large electric dipole that enables ...
Chang, Wen-Hao +8 more
core +2 more sources
Photonic crystals for nano-light in moir\'e graphene superlattices [PDF]
, 2018 Graphene is an atomically thin plasmonic medium that supports highly confined plasmon polaritons, or nano-light, with very low loss. Electronic properties of graphene can be drastically altered when it is laid upon another graphene layer, resulting in a ...
Basov, D. N. +12 more
core +3 more sources