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Phase transition in an Ising-spinglass-model including next-nearest-neighbor-interaction?

DOI to cite this document:
Morgenstern, Ingo
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Date of publication of this fulltext: 16 Aug 2010 12:15


The ldquoTransfermatrix-Methodrdquo [1, 2] is applied to an Ising-spinglass-model on the square lattice with nearest neighbor interactionsJ 1 positive and next nearest neighbor interactionsJ 2 negative, when a fraction 1-x of the spins is removed at random. An example for this model is Eu x Sr1-x S [3, 4]. The question concerning the existence of a springlass-phase is not yet clarified. ...


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