Ubiquitous nematic Dirac semimetal emerging from interacting quadratic band touching systems
Quadratic band touching (QBT) points are widely observed in two-and three-dimensional
(2D and 3D) materials, including bilayer graphene and Luttinger semimetals, and attract …
(2D and 3D) materials, including bilayer graphene and Luttinger semimetals, and attract …
Tuning topological phase and quantum anomalous Hall effect by interaction in quadratic band touching systems
Interaction-driven topological phases significantly enrich the class of topological materials
and thus are of great importance. Here, we study the phase diagram of interacting spinless …
and thus are of great importance. Here, we study the phase diagram of interacting spinless …
Quantum anomalous Hall phase stabilized via realistic interactions on a kagome lattice
We study the quantum phases of spinless fermions at one-third filling on a kagome lattice
featuring a quadratic band touching Fermi point. In the presence of weak first and second …
featuring a quadratic band touching Fermi point. In the presence of weak first and second …
Stabilizing topological superfluidity of lattice fermions
Attractive interaction between spinless fermions in a two-dimensional lattice drives the
formation of a topological superfluid. But the topological phase is dynamically unstable …
formation of a topological superfluid. But the topological phase is dynamically unstable …
Orbital chern insulator and quantum phase diagram of a kagome electron system with half-filled flat bands
We study the quantum phase diagram of electrons on kagome lattice with half-filled lowest
flat bands by considering the antiferromagnetic Heisenberg interaction J, and short-range …
flat bands by considering the antiferromagnetic Heisenberg interaction J, and short-range …
Photoemission Evidence of a Novel Charge Order in Kagome Metal FeGe
A charge order has been discovered to emerge deep into the antiferromagnetic phase of the
kagome metal FeGe. However, due to the existence of defects, the as-grown FeGe sample …
kagome metal FeGe. However, due to the existence of defects, the as-grown FeGe sample …
Exact diagonalization study of strongly correlated topological quantum states
M Chen - 2019 - vtechworks.lib.vt.edu
A rich variety of phases can exist in quantum systems. For example, the fractional quantum
Hall states have persistent topological characteristics that derive from strong interaction. This …
Hall states have persistent topological characteristics that derive from strong interaction. This …