59 citations · 152 across the 20 of their papers we have counts for
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Influence of electronic correlations on orbital polarizations in the parent and doped iron pnictides
Ya-Min Quan, Liang-Jian Zou, Da-Yong Liu +1
Orbital polarization and electronic correlation are two essential aspects in understanding the normal state and superconducting properties of multiorbital FeAs-based superconductor…
A Three-Dimensional Tight-Binding Model and Magnetic Instability of KFe2e2
Da-Yong Liu, Ya-Min Quan, Zhi Zeng +1
For a newly discovered iron-based high T_c superconducting parent material KFe2Se2, we present an effective three-dimensional five-orbital tight-binding model by fitting the band s…
Effect of Spin Correlations on Multi-orbital Metal-Insulator Transitions and Suppression of Orbital Selective Mott Transitions
Ya-Min Quan, Liang-Jian Zou, Hai-Qing Lin
We present the influence of spin correlation on the metal-insulator transitions (MIT) in two-orbital Hubbard models by the Kotliar-Ruckenstein slave-boson approach. In the asymmetr…
Competition of crystal field splitting and Hund's rule coupling in two-orbital magnetic metal-insulator transitions
Ya-Min Quan, Liang-Jian Zou, Dayong Liu +1
Competition of crystal field splitting and Hund's rule coupling in magnetic metal-insulator transitions of half-filled two-orbital Hubbard model is investigated by multi-orbital sl…
Orbital density wave induced by electron-lattice coupling in orthorhombic iron pnictides
Da-Yong Liu, Ya-Min Quan, Dong-Meng Chen +2
In this paper we explore the magnetic and orbital properties closely related to a tetragonal-orthorhombic structural phase transition in iron pnictides based on both two- and five-…