Spin-wave analysis of the ferromagnetic-ferromagnetic Heisenberg spin bilayer with intralayer single-ion anisotropy and interlayer antiferromagnetic interaction
Abstract:In this paper, the spin wave theory is applied to the Heisenberg spin bilayer with intralayer ferromagnetic interaction [Formula: see text], intralayer single-ion anisotropy D and interlayer antiferromagnetic interaction [Formula: see text]. It is found that the effects of both D and [Formula: see text] on the thermodynamic quantities give rise to the two different low-temperature asymptotic behaviors with and without exponential law. For [Formula: see text], the interlayer antiferromagnetic interaction can in… Show more
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