Monte-Carlo study of Ising model ferromagnetic/antiferromagnetic spin frustrated superlattice

Conventional Monte-Carlo calculations have been carried out to simulate an N x N x N (N = 10, 16, 20) Ising superlattice consisting of alternating lay ers of a ferromagnet and an antiferromagnet with different exchange interac tion strengths in the antiferromagnetic layer. With increasing strength of the exchange interaction in antiferromagnetic layers, the ferromagnetic Cur ie temperature is decreased and the susceptibility is increased in superlat tices. The magnetic susceptibility of the ferromagnetic layer is at its max imum value when the magnitudes of ferromagnetic interaction and antiferroma gnetic interaction are equal.