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本文用文献[4]中提出的方法,变S=1的Ising体系成一个粒子数不守恒的费密体系,严格地求得了具有最近邻及次近邻相互作用的反铁磁Ising晶格在任意外场下的基态能量,得到了零温的相图。As an extension of the method presented in reference [4], this paper concerns with the transformation from Ising spin S=1 systems to a Fermion system in which the total number of particles is not a constant. We obtained rigorously the ground state energy of the antiferromagnetics of Ising S=1 fcc lattice with nearest neighbors and next nearest neighbors interaction in an arbitrary magnetic field, and also the phase equilibrium diagram at T = OK.
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