STM Study of Twisted Bilayer GrapheneIn the 1980s, the invention of scanning tunneling microscope (STM) opened the door to observe the world from the atomic scale. For STM, good resolution is considered to be 0.1nm lateral resolution andoi:10.1007/978-981-10-5181-4_3Mengxi Liu...
Twisted bilayer graphene is a two-dimensional moiré superlattice material formed by simple twisting of two stacked layers of graphene. This material exhibits a series of exotic physical properties dictated by the superlattice structure, such as superconducting, magnetic, and localized states. These prope...
Twisted bilayer graphene with a twist angle of around 1.1° features a pair of isolated flat electronic bands and forms a platform for investigating strongly correlated electrons. Here, we use scanning tunnelling microscopy to probe the local properties of highly tunable twisted bilayer graphene devices...
H. Electronic structure of single-twist trilayer graphene. Preprint at https://arxiv.org/abs/1907.12338 (2019). Oh, M. et al. Evidence for unconventional superconductivity in twisted bilayer graphene. Nature 600, 240–245 (2021). Article CAS ADS PubMed Google Scholar Carr, S. et al. ...
Twisted bilayer grapheneStrainRaman spectroscopyIn this work, we have synthesised twisted bilayer graphene on nickel substrate by chemical vapour deposition. The Moir茅 superlattice generated by a misorientation in the stacking of two layers of graphene was studied. Raman spectroscopy was used to ...
We have performed an ab initio investigation of transition metals (TMs = Mo, Ru, Co, and Pt) embedded in twisted bilayer graphene (tBG) layers. Our total energy results reveal that, triggered by the misalignment between the graphene layers, Mo and Ru atoms may form a quasiperiodic (...
Twisted bilayer graphene formation by a combined growth of surface reaction and segregation on Ni(111) thin films.Twist angle distribution analysis by surface science techniques.Commensurate dominant twist angles of 13°, 22°, 38°, and 47°.Nano- and atomic-scale structural characterization by ...
Graphenetwist bilayerhelical networkFermi surface nestingParallel ("nested") regions of a Fermi surface (FS) drive instabilities of the electron fluid, for example, the spin density wave in elemental chromium. In one-dimensional materials, the FS is trivially fully nested (a single nesting vector ...
While a significant amount of studies have focused on twisted bilayer graphene, correlated insulating states and a superconductivity-like transition up to 12 K have been reported in recent transport measurements of twisted double bilayer graphene (tDBLG). Here we present a scanning tunneling microscopy...
The twisted graphene is determined to have a\nrotation angle of 5.4{\\deg} between the top two layers, by comparing moir\\'e\npatterns from stick and ball models of bilayer graphene to experimentally\nobtained images. Furthermore, the experimental moir\\'e pattern shows dynamic\nbehavior, ...