Geometry, whether on the atomic or nanoscale, is a key factor for the electronic band
structure of materials. Some specific geometries give rise to novel and potentially useful …

We investigate topological characteristics of the photon-dressed band structure of the α-T 3
lattice on being driven by off-resonant circularly polarized radiation. We obtain exact …

We present impelling evidence of topological phase transitions induced by electron-phonon
(e-ph) coupling in an α-T 3 Haldane-Holstein model that facilitates smooth tunability …

Certain lattices with specific geometries have one or more spectral bands that are strictly flat,
ie, the electron energy is independent of the momentum. This can occur robustly irrespective …

We study theoretically the transport through a finite-size sawtooth lattice coupled to two
fermionic reservoirs kept in the superfluid state. We focus on the DC Josephson effect and …

Recently, several experiments [KK Gomes, Nature (London) 483, 306 (2012) NATUAS 0028-
0836 10.1038/nature10941; S. Wang, Phys. Rev. Lett. 113, 196803 (2014) PRLTAO 0031 …

We theoretically study the topological properties of magnons and the relevant magnon
thermal Hall effect in trimerized Lieb lattice ferromagnets in the presence of next-nearest …

We study the Wigner crystallization on partially filled topological flat bands of kagome,
honeycomb and checkerboard lattices. We identify the Wigner crystals (WCs) by analyzing …

Lieb lattice, a two-dimensional edge-centered square lattice, has attracted considerable
interest due to its exotic electronic and topological properties. Although various optical and …

Isolated flat bands are known to host various strongly correlated phases due to the
enhanced Coulomb interactions when the flat bands are gapped from dispersive bands …