24 citations · 68 across the 9 of their papers we have counts for
9 papers
Spontaneous charge-ordered state in Bernal-stacked bilayer graphene
Xiu-Cai Jiang, Ze-Yi Song, Ze Ruan +1
We propose that a weakly spontaneous charge-ordered insulating state probably exists in Bernal-stacked bilayer graphene which can account for experimentally observed non-monotonic…
Uncovering double-stripe and plaquette antiferromagnetic states in the one-band Hubbard model on a frustrated square lattice
Ze Ruan, Xiu-Cai Jiang, Ze-Yi Song +1
Groundstate magnetism of the one-band Hubbard model on the frustrated square lattice where both nearest-neighbour and next-nearest-neighbour hoppings are considered at…
Breakdown of the Hund's Rule in CuFeAs
Ze-Yi Song, Xiu-Cai Jiang, Xiao-Fang Ouyang +1
The ground-state properties of CuFeAs were investigated by applying density functional theory calculations within generalized gradient approximation (GGA) and GGA+U. We find that t…
Orbitally-selective Breakdown of the Fermi Liquid and Simultaneous Enhancement of Metallic and Insulating States in Correlated Multi-band Systems with Spin-orbit Coupling
Ze-Yi Song, Xiu-Cai Jiang, Yu-Zhong Zhang
We show that spin-orbit coupling (SOC) plays Janus-faced roles on the orbitally-selective Mott transitions in a three-orbital Hubbard model with crystal field splitting at a specif…
Distinct Nature of Orbital Selective Mott Phases Dominated by the Low-energy Local Spin Fluctuations
Ze-Yi Song, Xiu-Cai Jiang, Hai-Qing Lin +1
Quantum orbital selective Mott (OSM) transitions are investigated within dynamical mean-field theory based on a two-orbital Hubbard model with different bandwidth at half filling.…
Fully Spin-Polarized Current in Gated Bilayer Silicene
Xiao-Fang Ouyang, Ze-Yi Song, Yu-Zhong Zhang
By applying density functional theory calculations, we predict that the groundstate of bilayer silicene at certain interlayer distances can be antiferromagnetic. At small electron…
Interaction-induced metallic state in graphene on hexagonal boron nitride
Jin-Rong Xu, Ze-Yi Song, Chen-Guang Yuan +1
The Coulomb interaction is widely known to enhance the effective mass of interacting particles and therefore tends to favor a localized state at commensurate filling. Here, we will…
Gate-induced Gap in Bilayer Graphene Suppressed by Coulomb Repulsion
Jin-Rong Xu, Ze-Yi Song, Hai-Qing Lin +1
We investigate the effect of on-site Coulomb repulsion on the band gap of the electrically gated bilayer graphene by employing coherent potential approximation in the paramagne…
Orbital Selective Mott Transition Induced by Orbitals with Distinct Noninteracting Densities of States
Ze-Yi Song, Hunpyo Lee, Yu-Zhong Zhang
By applying dynamical mean-field theory in combination with exact diagonalization at zero temperature to a half-filled Hubbard model with two orbitals having distinct noninteractin…