183 citations · 277 across the 7 of their papers we have counts for
7 papers
Stability of two-dimensional asymmetric materials with a quadratic band crossing point under four-fermion interaction and impurity scattering
Yao-Ming Dong, Ya-Hui Zhai, Dong-Xing Zheng +1
We investigate the impacts of combination of fermion-fermion interactions and impurity scatterings on the low-energy stabilities of two-dimensional asymmetric materials with a quad…
Singular low-energy states of tilted Dirac semimetals induced by the fermion-fermion interactions
Jie-Qiong Li, Dong-Xing Zheng, Jing Wang
We attentively investigate the effects of short-range fermion-fermion interactions on the low-energy properties of both two-dimensional type-I and type-II tilted Dirac semimetals b…
Cooper instability generated by attractive fermion-fermion interaction in the two-dimensional semi-Dirac semimetals
Yao-Ming Dong, Dong-Xing Zheng, Jing Wang
Cooper instability associated with superconductivity in the two-dimensional semi-Dirac semimetals is attentively studied in the presence of attractive Cooper-pairing interaction, w…
Non-Fermi Liquid Behavior Close to a Quantum Critical Point in a Ferromagnetic State without Local Moments
E. Svanidze, L. Liu, B. Frandsen +12
A quantum critical point (QCP) occurs upon chemical doping of the weak itinerant ferromagnet Sc_{3.1}In. Remarkable for a system with no local moments, the QCP is accompanied by no…
Pomeranchuk cooling of the SU() ultra-cold fermions in optical lattices
Zi Cai, Hsiang-hsuan Hung, Lei Wang +2
We investigate the thermodynamic properties of a half-filled SU(2N) Fermi-Hubbard model in the two-dimensional square lattice using the determinantal quantum Monte Carlo simulation…
Particle-hole symmetry and interaction effects in the Kane-Mele-Hubbard model
Dong Zheng, Guang-Ming Zhang, Congjun Wu
We prove that the Kane-Mele-Hubbard model with purely imaginary next-nearest-neighbor hoppings has a particle-hole symmetry at half-filling. Such a symmetry has interesting consequ…
Continuous quantum phase transition between two topologically distinct valence bond solid states associated with the same spin value
Dong Zheng, Guang-Ming Zhang, Tao Xiang +1
We propose a simple one-dimensional spin-2 Hamiltonian, which exhibits two topologically distinct valence bond solid states in different exactly solvable limits. We then construct…