Phase Transition in Ferromagnetic Transverse Spin-1/2 Ising Multilayers

The antiferromagnetic Ising model for a bilayer Bethe lattice

“…A simple criterion which allows for the straightforward determination of the order-disorder critical temperatures is found and which predicts that b c ¼ 0:2656 for the two coupled layers of Ising spins [13]. The critical behavior of ferromagnetic transverse Ising multilayers consisting of two different ferromagnetic materials A and B, and presenting a sandwich structure in the form (ABA), is examined using the effective field theory (EFT) [14]. The effect of a random transverse field on the wetting and layering transitions of Ising model in the presence of bulk and surface fields is studied within an EFT by using the differential operator technique [15].…”