Exact results for a random frustrated Ising model on the Kagomé lattice |
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| Authors: | H J Giacomini J A Riera |
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| Institution: | (1) Instituto de Fisica Rosario (IFIR), Rosario, Argentina;(2) Present address: Laboratoire de Magnetisme des Surfaces, Université Paris VII, Paris, France |
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| Abstract: | We perform a slight modification of the decoration-decimation transformation which allows us to map the homogeneous Ising model on the honeycomb lattice on an inhomogeneous Ising model on the Kagomé lattice. Then, we obtain exact results for a class of random bond Ising model on the Kagomé lattice with competing interactions and show that the different types of frustration make the critical point of the pure model disappear. |
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| Keywords: | Decoration inhomogeneous Ising model disorder frustration exactly solvable model |
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