Sep 28, 2020 · Here, we combine different imaging techniques and angle-resolved photoemission with simultaneous real- and momentum-space resolution (nano-ARPES) to directly map the band dispersion in twisted...

Aug 18, 2006 · We describe the synthesis of bilayer graphene thin films deposited on insulating silicon carbide and report the characterization of their electronic band structure using angle-resolved photoemission.

May 26, 2023 · Here, we use a direct comparison between simulated and measured ARPES spectra to test electronic band structure predictions for few-layer graphene samples with different stacking geometries and over a range of (small) twist angles.

Oct 15, 2024 · Integration with k-means clustering enables clear visualization of spatial variations. Our method efficiently handles large datasets, extracting spectral features without manual inspection. It...

May 10, 2016 · Angle-resolved photoemission spectroscopy (ARPES) data on electronic structure are difficult to interpret, because various factors such as atomic structure and experimental setup influence...

Apr 3, 2020 · In angle-resolved photoemission spectroscopy (ARPES), these superlattice effects are directly observable via the formation of minibands such as the mini Dirac cones identified in epitaxial graphene on Ir (111) (10, 11), twisted bilayer graphene (12), and heterostructures of graphene with hexagonal boron nitride (hBN) (13, 14).

Here, we use a direct comparison between simulated and measured ARPES spectra to test electronic band structure predictions for few-layer graphene samples with different stacking geometries and over a range of (small) twist angles.

Aug 5, 2011 · Angle-resolved photoelectron spectroscopy (ARPES) is extensively used to characterize the dependence of the electronic structure of graphene on Ir (111) on the preparation process. ARPES findings reveal that temperature-programmed growth alone or in combination with chemical vapor deposition leads to graphene displaying sharp electronic bands.

Jun 22, 2018 · The crystallographic stacking order in multilayer graphene plays an important role in determining its electronic properties. It has been predicted that a rhombohedral (ABC) stacking displays a conducting surface state with flat electronic dispersion.

Jun 28, 2018 · Angle-resolved photoemission spectroscopy (ARPES) revealed many replicas of Dirac cones with 12-fold rotational symmetry, indicating large enhancement of interlayer coupling with the quasicrystalline order.