197 citations · 939 across the 30 of their papers we have counts for
7 papers · 1 filter
Superconducting Phases of the Square-Lattice Extended Hubbard Model
Wei-Chih Chen, Yao Wang, Cheng-Chien Chen
We study the square-lattice extended Hubbard model with on-site and nearest-neighbor interactions by exact diagonalization. We show that non-equilibrium quench dynamics can…
Dispersionless orbital excitations in (Li,Fe)OHFeSe superconductors
Qian Xiao, Wenliang Zhang, Teguh Citra Asmara +9
The superconducting critical temperature of intercalated iron-selenide superconductor (Li,Fe)OHFeSe (FeSe11111) can be increased to 42 K from 8 K of bulk FeSe. It…
Fluctuating Nature of Light-Enhanced -Wave Superconductivity: A Time-Dependent Variational Non-Gaussian Exact Diagonalization Study
Yao Wang, Tao Shi, Cheng-Chien Chen
Engineering quantum phases using light is a novel route to designing functional materials, where light-induced superconductivity is a successful example. Although this phenomenon h…
Numerical exploration of spontaneous broken symmetries in multi-orbital Hubbard models
Y. F. Kung, C. -C. Chen, B. Moritz +3
We study three proposals for broken symmetry in the cuprate pseudogap - oxygen antiferromagnetism, orbital loop currents, and circulating currents involving apex oxygens -…
Existence of Orbital Order and its Fluctuation in Ba(FeCo)As Revealed by X-ray Absorption Spectroscopy
Y. K. Kim, W. S. Jung, G. R. Han +13
We performed temperature dependent X-ray linear dichroism (XLD) experiments on an iron pnictide system, Ba(FeCo)As with =0.00 and 0.05, to experimentally ver…
A Fidelity Study of the Superconducting Phase Diagram in the 2D Single-band Hubbard Model
C. J. Jia, B. Moritz, C. -C. Chen +2
Extensive numerical studies have demonstrated that the two-dimensional single-band Hubbard model contains much of the key physics in cuprate high-temperature superconductors. Howev…
Evidence for weak electronic correlations in Fe-pnictides
W. L. Yang, P. O. Velasco, J. D. Denlinger +17
Using x-ray absorption and resonant inelastic x-ray scattering, charge dynamics at and near the Fe edges is investigated in Fe pnictide materials, and contrasted to that measur…