Abstract
We present the phase diagrams in a 2D spin 1/2 Ising model for the triangular lattice. Using the finitecluster approximation and renormalization technique we studied a nearest-neighbour random interactions. Ferromagnetic exchange interactionsJ are considered with concentrationp and exchange interactions αJ (|α|≦1) with concentration (1-p). The phase diagrams were obtained for this model. They show re-entrant behaviour in certain ranges of the concentrationp and different α.
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References
Callen, H.B.: Phys. Lett.4, 161 (1963)
Tóth, Ľ., Tóthová, M.: J. Phys.: Condens. Matter5, 121 (1993)
Benayad, N., Benyoussef, A., Boccara, N.: J. Phys. C: Solid State Phys.21, 5417 (1988)
Bobák, A., Jaščur, M.: J. Phys.: Condens. Matter2, 10053 (1990)
Wolf, W.F., Zittartz, J.: Z. Phys. B60, 185 (1985)
Mockovčiak, S., Jaščur, M., Bobák, A.: Phys. Status Solidi b166, K25 (1991)
Honmura, R., Kaneyoshi, T.: J. Phys. C: Solid State Phys.12, 3979 (1979)
Nightigale, M.P.: Physica A83, 561 (1976)
Indekeu, J.O., Maritan, A., Stella, A.L.: J. Phys. A: Math. Gen.15, L291 (1982)
Sykes, M.F., Essam, J.W.: Phys. Rev.133, A310 (1964)
Domb, C.: Phase transitions and critical phenomena vol. 3. Domb, C.; Green, M.S. (eds.). London: Academic Press 1974
Tóth, Ľ., Tóthová, M.: Phys. Status Solidi b167, K63 (1991)
Benayad, N., Klümper, A., Zittartz, J., Benyoussef, A.: Z. Phys. B77, 333 (1989)