Effect of a Chern-Simons term on dynamical gap generation in graphene

Article

关键词: CHIRAL-SYMMETRY BREAKING;    PARITY;    MODEL;   

DOI  :  10.1103/PhysRevB.99.115432

来源: SCIE

【 摘 要 】

We study the effect of a Chern-Simons term on dynamical gap generation in a low-energy effective theory that describes some features of monolayer suspended graphene. We use a nonperturbative Schwinger-Dyson approach. We solve a set of coupled integral equations for eight independent dressing functions that describe fermion and photon degrees of freedom. We find a strong suppression of the gap and corresponding increase in the critical coupling as a function of increasing Chern-Simons coefficient.

【 授权许可】

Free