ABSTRACT
The magnetic properties of an Ising antiferromagnetic model on bilayer nanographene have spins that can take the values spin-S and spin-σ, are studied by Monte Carlo simulations with different size. We only consider the nearest-neighbor interactions between the site i and j. The zero eld cold and eld cold thermal magnetizations, thermal magnetic susceptibilities, and hysteresis cycle are obtained for a nanographene structure with the effect of exchange interaction between sites i and j. The blocking temperature is also obtained for specic values of the external magnetic eld. The Monte Carlo simulation is used to study the behavior of defects and the dilution sites in nanographene.
