Mean-Field Studies of a Mixed Spin-3/2 and Spin-2 and a Mixed Spin-3/2 and Spin-5/2 Ising System with Different Anisotropies |
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| Authors: | WEI Guo-Zhu MIAO Hai-Ling |
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| Institution: | 1.College of Sciences, Northeastern University, Shenyang 110004, China
;2.International Center for Material Physics, Academia Sinica, Shenyang 110015, China |
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| Abstract: | The magnetic properties of a mixed spin-3/2 and spin-2 and a mixed spin-3/2and spin-5/2 Ising ferromagnetic system with different anisotropies are studied by means of mean-field theory (MFT). The dependence of the phase diagram on single-ion anisotropy strengths is studied too. In the mixed spin-3/2 and spin-2 Ising model, besides the second-order phase transition, the first order-disorder phase transition and the tricritical line are found. In the mixed spin-3/2 and spin-5/2 Ising model, there is no first-order transition and tricritical line. |
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| Keywords: | mixed spin Ising system mean-field theory |
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