210 citations · 455 across the 5 of their papers we have counts for
5 papers
Gutzwiller Variational Method for Intersite Coulomb Interactions: The Spinless Fermion Model in One Dimension
M. Sherafati, S. Satpathy, D. Pettey
We study the Gutzwiller method for the spinless fermion model in one dimension, which is one of the simplest models that incorporates the intersite Coulomb interaction. The Gutzwil…
On the Ruderman-Kittel-Kasuya-Yosida interaction in graphene
M. Sherafati, S. Satpathy
The two dimensionality plus the linear band structure of graphene leads to new behavior of the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, which is the interaction between tw…
Analytical Expression for the RKKY Interaction in Doped Graphene
M. Sherafati, S. Satpathy
We obtain an analytical expression for the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in electron or hole doped graphene for linear Dirac bands. The results agree very we…
Electronic structure of the substitutional vacancy in graphene: Density-functional and Green's function studies
B. R. K. Nanda, M. Sherafati, Z. Popović +1
We study the electronic structure of graphene with a single substitutional vacancy using a combination of the density-functional, tight-binding, and impurity Green's function appro…
RKKY Interaction in Graphene from Lattice Green's Function
M. Sherafati, S. Satpathy
We study the exchange interaction between two magnetic impurities in graphene (the RKKY interaction) by directly computing the lattice Green's function for the tight-binding ba…