54 citations · 115 across the 11 of their papers we have counts for
4 papers · 1 filter
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…
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…
A calculation scheme for spectral densities of strongly correlated electron systems using exact diagonalization of dynamical mean field theory
Song-Jin O, Hak-Chol Pak, Kwang-Il Ryom +1
A new approach for calculating spectral density functions of strongly correlated electron systems is proposed within the exact diagonalization method of dynamical mean-field theory…
One approach for determining susceptibilities and order parameters in multi-band Hubbard model
Sung-Jin Oh, Hak-Chol Pak, Kuk-Chol Ri
We present an approach for determining susceptibilities and order parameters in multi-band Hubbard model within functional renormalization group method, and apply it to study vario…