Topological aspects of the electron wave function—including the Berry curvature and Chern
number—play a crucial role in determining the physical properties of materials. Although the …

Nonlinear anomalous (NLA) Hall effect is the Berry curvature dipole induced second-order
Hall voltage or temperature difference induced by a longitudinal electric field or temperature …

Moiré superlattices have become a fertile playground for topological Chern insulators,
where the displacement field can tune the quantum geometry and Chern number of the …

Recently, magic-angle twisted bilayer graphene (MATBLG) has emerged with various
interaction-driven novel quantum phases at the commensurate fillings of the moiré …

Graphene-based moiré systems have attracted considerable interest in recent years as they
display a remarkable variety of correlated phenomena. Besides insulating and …

Our theoretical study unfolds the topological phase transitions (within bands of the Moiré
super-lattice) in small angle twisted double bilayer graphene (tDBLG) under the influence of …

Flat bands in twisted moiré superlattices support a variety of topological and strongly
correlated phenomena along with easily tunable electrical and optical properties. Here, we …

We investigate the topological phase transitions driven by band war**, λ, and a transverse
magnetic field, B, for three-dimensional Weyl semimetals. First, we use the Chern number as …

Bernal-stacked tetralayer graphene (4LG) exhibits intriguing low-energy properties,
featuring two massive sub-bands and showcasing diverse features of topologically distinct …

Nanographene provides a wide range of possibilities in graphene engineering for future
applications due to the higher degrees of configurational freedom with the electronic …