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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2003, Volume 77, Issue 10, Pages 675–680
(Mi jetpl2824)
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This article is cited in 2 scientific papers (total in 2 papers)
Magnetic phase diagram for a random three-dimensional Ising point-dipole lattice
E. Z. Meilikhov Institute of Molecular Physics, Russian Research Center "Kurchatov Institute", Moscow
Abstract:
It is shown, within the framework of the generalized mean-field theory, that the ground state of a system of Ising point dipoles randomly filling the sites of a three-dimensional cubic lattice depends on the fraction $p$ of filled sites. For example, a body-centered lattice is ferromagnetic at $p>p_{c1}\approx0.55$, a spin glass at $p_{c1}<p<p_{c2}\approx0.35$, and paramagnetic at $p<p_{c2}$. The transition between these states has a percolation nature. The temperature dependences of the magnetization in the ferromagnetic phase and the susceptibility in the paramagnetic phase were determined. The magnetic phase diagram of the system was constructed.
Received: 21.02.2003 Revised: 14.04.2003
Citation:
E. Z. Meilikhov, “Magnetic phase diagram for a random three-dimensional Ising point-dipole lattice”, Pis'ma v Zh. Èksper. Teoret. Fiz., 77:10 (2003), 675–680; JETP Letters, 77:10 (2003), 571–576
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https://www.mathnet.ru/eng/jetpl2824 https://www.mathnet.ru/eng/jetpl/v77/i10/p675
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Abstract page: | 138 | Full-text PDF : | 67 | References: | 39 |
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