Geometry-diversified Coulomb excitations in trilayer AAB stacking graphene
نویسندگان
چکیده
منابع مشابه
Stacking-dependent band gap and quantum transport in trilayer graphene
Graphene1–3 is an extraordinary two-dimensional (2D) system with chiral charge carriers and fascinating electronic, mechanical and thermal properties4,5. In multilayer graphene6,7, stacking order provides an important yet rarely explored degree of freedom for tuning its electronic properties8. For instance, Bernal-stacked trilayer graphene (B-TLG) is semi-metallic with a tunable band overlap, a...
متن کاملElectric field control of soliton motion and stacking in trilayer graphene.
The crystal structure of a material plays an important role in determining its electronic properties. Changing from one crystal structure to another involves a phase transition that is usually controlled by a state variable such as temperature or pressure. In the case of trilayer graphene, there are two common stacking configurations (Bernal and rhombohedral) that exhibit very different electro...
متن کاملMolecular adsorption induces the transformation of rhombohedral- to Bernal-stacking order in trilayer graphene.
The Bernal (ABA)-stacked graphene trilayer is presumed to be thermodynamically more stable than the rhombohedral (ABC) counterpart. However, the thermal transformation from ABC to ABA domains does not occur at a temperature lower than 1,000 °C. Here we report that ABC-stacked trilayers are transformed to ABA-stacked layers after an organic molecule triazine is evaporated onto graphene surfaces ...
متن کاملMicro-excitations in Coulomb liquids
In a 2D liquid melted from a triangular lattice, the accumulation of constructive perturbation from thermal noise and other external slow drive can cause slick-slip type particle hopping over the caging barrier formed by the surrounding particles, which in turn distort the order lattice structure and generate topological defects. Through the strong mutual coupling, these nonlinear threshold-typ...
متن کاملTunable infrared phonon anomalies in trilayer graphene.
Trilayer graphene in both ABA (Bernal) and ABC (rhombohedral) stacking sequences is shown to exhibit intense infrared absorption from in-plane optical phonons. The phonon feature, lying at ~1580 cm(-1), changes strongly with electrostatic gating. For ABC-stacked graphene trilayers, we observed a large enhancement in phonon absorption amplitude, as well as softening of the phonon mode, as the Fe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2018
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.98.195442