The phase diagrams of the semi-infinite Ising ferromagnet with decorated magnetic (spin-S) and nonmagnetic atoms on the surface are investigated within the framework of the effective-field theory. In particular, the critical properties of the special point in the surface phase diagram are...

The magnetic properties of a decorated Ising system with a random field at the decorated atom are investigated by the use of the effective-field theory with correlations. In particular, the phase diagram and magnetization curve of the decorated ferrimagnetic honeycomb lattice are examined...