118 citations · 1k across the 44 of their papers we have counts for
20 papers · 1 filter
Topological Fulde-Ferrell and Larkin-Ovchinnikov states in spin-orbit coupled lattice system
Yao-Wu Guo, Yan Chen
The spin-orbit coupled lattice system under Zeeman fields provides an ideal platform to realize exotic pairing states. Notable examples range from the topological superfluid/superc…
Magnetic ground state of superconducting Eu(Fe0.88Ir0.12)2As2: A combined neutron diffraction and first-principles calculation study
W. T. Jin, Wei Li, Y. Su +10
The magnetic order of the localized Eu spins in optimally-doped Eu(FeIr)As ( = 0.12) with superconducting transition temperature $\math…
Coexistence of Enhanced Superconductivity and Antiferromagnetism: Possible Correlated Phase Transitions in Trilayer High-Tc Cuprates
Chun Chen, A. Fujimori, C. S. Ting +1
Based on a hybrid interlayer coupling mechanism, we study the coexistence of superconductivity (SC) and antiferromagnetism (AFM) in trilayer cuprates. By introducing an interlayer…
Pairing Symmetry in Iron-Pnictide Superconductor KFeAs
Wei Li, Jian Li, Jian-Xin Zhu +2
The pairing symmetry is one of the major issues in the study of iron-based superconductors. We adopt a low-energy effective kinetic model based on the first-principles band structu…
Unconventional superconducting states on doped Shastry-Sutherland lattice
Huai-Xiang Huang, Yan Chen, Guo-Hong Yang
By using a renormalized mean-field theory, we investigate the phase diagram of --- model on two dimensional Shastry-Sutherland lattice which are topologically equival…
Phase Fluctuations in High Temperature Superconductors
Wonkee Kim, Yan Chen, C. S. Ting
Within the phase fluctuation picture for the pseudogap state of a high- superconductor, we incorporate the phase fluctuations generated by the classical XY model with the Bo…
Imbalanced superfluid state in an annular disk
Fei Ye, Yan Chen, Z. D. Wang +1
The imbalanced superfluid state of spin-1/2 fermions with s-wave pairing is numerically studied by solving the Bogoliubov-de-Gennes equation at zero temperature in an annular disk…
A Generic Two-band Model for Unconventional Superconductivity and Spin-Density-Wave Order in Electron and Hole Doped Iron-Based Superconductors
Q. Han, Y. Chen, Z. D. Wang
Based on experimental data on the newly synthesized iron-based superconductors and the relevant band structure calculations, we propose a minimal two-band BCS-type Hamiltonian with…
Unconventional Superconducting Symmetry in a Checkerboard Antiferromagnet
Huai-Xiang Huang, You-Quan Li, Jing-Yu Gan +2
We use a renormalized mean field theory to study the Gutzwiller projected BCS states of the extended Hubbard model in the large limit, or the --- model on a two-d…
Superconducting Pairing Symmetries in Anisotropic Triangular Quantum Antiferromagnets
J. Y. Gan, Yan Chen, F. C. Zhang
Motivated by the recent discovery of a low temperature spin liquid phase in layered organic compound -(ET)Cu(CN) which becomes a superconductor under pressure, we ex…
Rotational Symmetry Breaking in Sodium Doped Cuprates
Yan Chen, T. M. Rice, F. C. Zhang
For reasonable parameters a hole bound to a Na^{+} acceptor in Ca_{2-x}Na_{x}CuO_{2}Cl_{2} has a doubly degenerate ground state whose components can be represented as states with e…
Unrestricted renormalized mean field theory of strongly correlated electron systems
Qiang-Hua Wang, Z. D. Wang, Yan Chen +1
We generalized systematically the renormalized mean field theory in the case of uniform states to the unrestricted case of general inhomogeneous states with competing spin-, charge…
Gossamer Superconductivity near Antiferromagnetic Mott Insulator in Layered Organic Conductors
J. Y. Gan, Yan Chen, Z. B. Su +1
Layered organic superconductors are on the verge of the Mott insulator. We use Gutzwiller variational method to study a Hubbard model including a spin exchange coupling term. The g…
Fermi surface evolution in the antiferromagnetic state for the electron-doped t-t'-t''-J model
Qingshan Yuan, Yan Chen, T. K. Lee +1
By use of the slave-boson mean-field approach, we have studied the electron-doped t-t'-t''-J model in the antiferromagnetic (AF) state. It is found that at low doping the Fermi sur…
States of Local Moment Induced by Nonmagnetic Impurities in Cuprate Superconductors
Yan Chen, C. S. Ting
By using a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) orders, the local staggered magnetization distribution due to nonmagnetic impurities…
Temperature dependence of Vortex Charges in High Temperature Superconductors
Yan Chen, Z. D. Wang, C. S. Ting
Using a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) interactions, the temperature (T) dependence of the vortex charge in high T_c supercond…
Theory of the NMR relaxation rates in cuprate superconductors with field induced antiferromagnetic order
Yan Chen, Jian-Xin Zhu, C. S. Ting
Based on a model Hamiltonian with a d-wave pairing interaction and a competing antiferromagnetic interaction, we numerically study the site dependence of the nuclear spin resonance…
Vortex Charges in High Temperature Superconductors
Yan Chen, Z. D. Wang, Jian-Xin Zhu +1
Based on an effective model Hamiltonian with competing antiferromagnetic (AF) and d-wave superconductivity (DSC) interactions, the vortex charge in high T_c superconductors is inve…
Numerical Study of Transition to Stripe Phases in High Temperature Superconductors Under a Strong Magnetic Field
Yan Chen, H. Y. Chen, C. S. Ting
The nature of spin density wave (SDW) and charge density wave (CDW) in the mixed state of high T_c superconductors (HTS) is investigated by using the self-consistent Bogoliubov-de…
Theory of Magnetic Field Induced Spin Density Wave in High Temperature Superconductors
Yan Chen, C. S. Ting
The induction of spin density wave (SDW) and charge density wave (CDW) orderings in the mixed state of high superconductors (HTS) is investigated by using the self-consistent…