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Journal of Magnetism and Magnetic Materials

Phase transition features of the bond-dilution transverse ferromagnetic Ising spin system with random crystal field

L.L. Deng, Shuaishuai Yan

Published Oct 1, 2002• 5 citations
Publisher
DOI
10.1016/s0304-8853(02)00490-0

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In the frame of Ising model, we investigate the critical properties of bond dilution ferromagnetic spin system with random crystal field and obtain the magnetization expressions by using effective field theory. Special emphasis is placed on tricritical properties of the square lattice. At the range of concern random concentration of crystal field and bond dilution,the present system shows some new critical properties,such as fluctuation of tricritical point. We discuss in detail the influence of two disorder factors on the critical properties and give phase diagram.