2 papers
cond-mat.str-el2020
Competing electronic orders on a heavily doped honeycomb lattice with enhanced exchange coupling
Song-Jin O, Yong-Hwan Kim, Ok-Gyong Pak +3
Motivated by recent discovery of correlated insulating and superconducting behavior in twisted bilayer graphene, we revisit graphene's honeycomb lattice doped close to the van Hove…
cond-mat.str-el2019
Effect of exchange interaction on electronic instabilities in the honeycomb lattice: A functional renormalization group study
Song-Jin O, Yong-Hwan Kim, Ho-Yong Rim +2
The impact of local and nonlocal density-density interactions on the electronic instabilities in the honeycomb lattice is widely investigated. Some early studies proposed the emerg…