Periodic and aperiodic dynamics of flat bands in diamond-octagon lattice
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.134307
Abstract: We drive periodically a two-dimensional diamond-octagon lattice model by switching between two Hamiltonian corresponding two different magnetic flux piercing through diamond plaquette to investigate the generation of topological flat bands. We show that in this… read more here.
Keywords: diamond; topology; flat bands; octagon lattice ... See more keywords
Projective symmetry group classification of Abrikosov fermion mean-field ansätze on the square-octagon lattice
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.107.134438
Abstract: We perform a projective symmetry group (PSG) classification of symmetric quantum spin liquids with different gauge groups on the square-octagon lattice. Employing the Abrikosov fermion representation for spin-$1/2$, we obtain $32$ $SU(2)$, $1808$ $U(1)$ and… read more here.
Keywords: abrikosov fermion; classification; projective symmetry; symmetry group ... See more keywords
Single-orbital realization of high-temperature s± superconductivity in the square-octagon lattice
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.184506
Abstract: The remarkable $s\pm$ superconductivity (SC) is well known in the iron-based superconductors, which are of multi-orbital characteristic. Here we propose a single-orbital realization of this intriguing pairing state with high superconducting critical temperature $T_c$ in… read more here.
Keywords: superconductivity; square octagon; realization; octagon lattice ... See more keywords