The random transverse Ising thin film with decorated ferrimagnetic surfaces

The phase diagrams and magnetization curves of the transverse Ising film with decorated spin-1 atoms on the surface, are investigated by the use of an effective field method within the framework of a single cluster theory. In particular, the case that decorated atoms at the surfaces are ordered ferrimagnetically is examined. The effects of the interactions, transverse field and film thickness are studied. A number of characteristic phenomena, such as the possibility of compensation points on the surfaces and in the film are found.