Fermion-fermion interaction driven instability and criticality of quadratic band crossing systems with the breaking of time-reversal symmetry

Zhai, YH; Wang, J

Wang, J (corresponding author), Tianjin Univ, Dept Phys, Tianjin 300072, Peoples R China.

NUCLEAR PHYSICS B, 2021; 966 ():

Abstract

We carefully study how the fermion-fermion interactions affect the low-energy states of a two-dimensional spin-1/2 fermionic system on the kagome latt......

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