Results 101 to 110 of about 360,605 (265)

Pseudomagnetic fields in fully relaxed twisted bilayer and trilayer graphene [PDF]

open access: yes, 2023
We present simple models to describe the in-plane and the out-of-plane lattice relaxation in twisted bilayer and symmetrically twisted trilayer graphene.
Ceferino, Adrián, Guinea, Francisco
core   +1 more source

Two-step CVD strategy for high-coverage twisted bilayer graphene

open access: yesResults in Physics
Bilayer graphene (BLG) with controlled stacking orientation is crucial for exploring novel quantum phenomena and developing next-generation electronic and optoelectronic devices.
Hua Xu, Zuoquan Tan, Bei Zhang, Le Wang
doaj   +1 more source

Acoustic twisted bilayer graphene

open access: yes, 2020
Twisted van der Waals (vdW) heterostructures have recently emerged as an attractive platform to study tunable correlated electron systems. However, the quantum mechanical nature of vdW heterostructures makes their theoretical and experimental exploration laborious and expensive.
Gardezi, S. Minhal   +3 more
openaire   +2 more sources

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

Thermal biasing for lattice symmetry breaking and topological edge state imaging

open access: yesNature Communications
Marginally twisted bilayer graphene with large Bernal stacked domains involves symmetry-breaking features with domain boundaries that exhibit topological edge states normally obscured by trivial bands.
Dohyun Kim   +8 more
doaj   +1 more source

Impurity-scattering-induced carrier transport in twisted bilayer graphene

open access: yesPhysical Review Research, 2020
We theoretically calculate the impurity-scattering-induced resistivity of twisted bilayer graphene at low twist angles where the graphene Fermi velocity is strongly suppressed.
E. H. Hwang, S. Das Sarma
doaj   +1 more source

Modeling of Electronic Dynamics in Twisted Bilayer Graphene

open access: yesSIAM Journal on Applied Mathematics
27 pages, 8 ...
Tianyu Kong   +3 more
openaire   +2 more sources

Interlayer‐Sliding‐Enabled Multiferroicity and Giant Switchable Anomalous Hall Conductivity in RuO2Zn2F2 Bilayer

open access: yesAdvanced Science, EarlyView.
Interlayer sliding in the RuO2Zn2F2 bilayer induces ferroelectricity and enables reversible valley polarization switching. The electric dipole and valley‐resolved band edges are intimately coupled, revealing sliding ferroelectricity as a powerful mechanism for electrical control of valley degrees of freedom in 2D materials.
Djamel Bezzerga   +3 more
wiley   +1 more source

Optical conductivity, Drude weight and plasmons in twisted graphene bilayers

open access: yesNew Journal of Physics, 2013
We numerically calculate the optical conductivity of twisted graphene bilayers within the continuum model. To obtain the imaginary part, we employ the regularized Kramers–Kronig relation, allowing us to discuss arbitrary twist angles, chemical potential ...
Tobias Stauber   +2 more
doaj   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

open access: yesAdvanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung   +7 more
wiley   +1 more source

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