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Tricritical behavior of a mixed spin-12 and spin-2 Ising system

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  • Kaneyoshi, T.

Abstract

The phase diagram of a mixed spin-12 and spin-2 Ising system is investigated by the use of the effective-field theory. The general expression for evaluating the transition temperature and the tricritical point is obtained. We find that the tricritical point exists in the system when the coordination number z is larger than z = 3.

Suggested Citation

  • Kaneyoshi, T., 1994. "Tricritical behavior of a mixed spin-12 and spin-2 Ising system," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 205(4), pages 677-686.
    • Handle: RePEc:eee:phsmap:v:205:y:1994:i:4:p:677-686
    DOI: 10.1016/0378-4371(94)90229-1
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    References listed on IDEAS

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    1. Bowers, John & Deaton, David, 1980. "Employment Functions and the Measurement of Labour Hoarding," The Manchester School of Economic & Social Studies, University of Manchester, vol. 48(2), pages 157-186, June.
    2. Siqueira, A.F. & Fittipaldi, I.P., 1986. "New effective-field theory for the Blume-Capel model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 138(3), pages 592-611.
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