31 citations · 122 across the 9 of their papers we have counts for
9 papers
Twisted bilayer graphene from first-principles: structural and electronic properties
Albert Zhu, Daniel Bennett, Daniel T. Larson +3
We present a comprehensive first-principles study of twisted bilayer graphene (tBLG) for a wide range of twist angles, with a focus on structural and electronic properties. By empl…
Theory for Lattice Relaxation in Marginal Twist Moirés
Christophe De Beule, Gayani N. Pallewela, Mohammed M. Al Ezzi +3
Atomically thin moiré materials behave like elastic membranes where at very small twist angles, the van der Waals adhesion energy much exceeds the strain energy. In this ``marginal…
A self-consistent Hartree theory for lattice-relaxed magic-angle twisted bilayer graphene
Mohammed M. Al Ezzi, Liangtao Peng, Zhengyu Liu +4
For twisted bilayer graphene close to magic angle, we show that the effects of lattice relaxation and the Hartree interaction both become simultaneously important. Including both e…
Analytical Model for Atomic Relaxation in Twisted Moiré Materials
Mohammed M. Al Ezzi, Gayani N. Pallewela, Christophe De Beule +2
By virtue of being atomically thin, the electronic properties of heterostructures built from two-dimensional materials are strongly influenced by atomic relaxation. The atomic laye…
Topological Flat Bands in Graphene Super-moiré Lattices
Mohammed M. Al Ezzi, Junxiong Hu, Ariando +2
Moiré-pattern based potential engineering has become an important way to explore exotic physics in a variety of two-dimensional condensed matter systems. While these potentials hav…
Extended magic phase in twisted graphene multilayers
D. C. W. Foo, Z. Zhan, Mohammed M. Al Ezzi +3
Theoretical and experimental studies have verified the existence of ``magic angles'' in twisted bilayer graphene, where the twist between layers gives rise to flat bands and conseq…
Controlled alignment of supermoiré lattice in double-aligned graphene heterostructures
Junxiong Hu, Junyou Tan, Mohammed M. Al Ezzi +12
The supermoiré lattice, built by stacking two moiré patterns, provides a platform for creating flat mini-bands and studying electron correlations. An ultimate challenge in assembli…
Direct Determination of Spin-Splitting Energy in Magnetic Graphene by Landau Fan Shifts
J. X. Hu, Y. L. Han, X. Chi +10
Spin-polarized two-dimensional materials with large and tunable spin-splitting energy promise the field of 2D spintronics. While graphene has been a canonical 2D material, its spin…
Carrier transport theory for twisted bilayer graphene in the metallic regime
Gargee Sharma, Indra Yudhistira, Nilotpal Chakraborty +4
Understanding the normal-metal state transport in twisted bilayer graphene near magic angle is of fundamental importance as it provides insights into the mechanisms responsible for…