38 citations · 94 across the 5 of their papers we have counts for
5 papers
RKKY Interaction in Disordered Graphene
Hyunyong Lee, Junghoon Kim, E. R. Mucciolo +2
We investigate the effects of nonmagnetic disorder on the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction in graphene by studying numerically the Anderson model with on-site and…
Magnetic response of the J1-J2 spin Hamiltonian from classical Monte Carlo and Schwinger boson mean field theory
Zhihua Yang, Jung Hoon Kim, Jung Hoon Han
Magnetic susceptibilities at several potential ordering wave vectors (0,0), (π,0), and (π,π) are analyzed for the antiferromagnetic J1-J2 spin Hamiltonian by classical Monte Carlo…
Chiral spin states in the pyrochlore Heisenberg magnet: Fermionic mean-field theory and variational Monte Carlo calculations
Jung Hoon Kim, Jung Hoon Han
Fermionic mean-field theory and variational Monte Carlo calculations are employed to shed light on the possible uniform ground states of the Heisenberg model on the pyrochlore latt…
Vector chiral states in low-dimensional quantum spin systems
Raoul Dillenschneider, Jung Hoon Kim, Jung Hoon Han
A class of exact spin ground states with nonzero averages of vector spin chirality, , is presented. It is obtained by applying non-uniform O(2) rota…
Coupling of phonons and spin waves in triangular antiferromagnet
Jung Hoon Kim, Jung Hoon Han
We investigate the influence of the spin-phonon coupling in the triangular antiferromagnet where the coupling is of the exchange-striction type. The magnon dispersion is shown to b…