مصدق, حمید

[ 1 ] - اثر برهم‌کنش‌های چهار اسپینی برروی سیمای فاز مدل هایزنبرگ J1-J2 پادفرومغناطیس اسپین 3/2 شبکه لانه زنبوری

In this study, the effect of four-spin exchanges between the nearest and next nearest neighbor spins of honeycomb lattice on the phase diagram of S=3/2 antiferomagnetic Heisenberg model is considered with two-spin exchanges between the nearest and next nearest neighbor spins. Firstly, the method is investigated with classical phase diagram. In classical phase diagram, in addition to Neel order,...