Is there any way I can couple Tersoff and lj/cut/coul/long? I’m trying to model a-Silica/water nanofluid with a-silica modeled by Tersoff and water being modeled by SPC/E (lj/cut/coul/long). But I’m having troubles modeling the cross interactions. Cross interactions could be modeled by lj but there is a problem with Coulombic interaction, because Tersoff is not using any localized charges on the atoms (in Si and O) though I couldn’t find any reference. Any help would be appreciated.