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Dynamics of Ising spin glasses with infinite-range interactions near the de Almeida-Thouless line

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Zeitschrift für Physik B Condensed Matter

Abstract

The dynamics of a soft-spin version of the Sherrington-Kirkpatrick model are calculated near the de Almeida-Thouless (AT) instability line. Lines of constant average relaxation timest 0 approach for nt 0⪞10 the AT line in the field (H)-temperature (T) plane and exhibit for 1nt 0<10 a cross-over fromH 2=4/3(1−T)3 to a square root law. The temperature of the susceptibility cusp turns out to be independent of frequency.

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  1. Institut für Festkörperforschung der Kernforschungsanlage Jülich, Postfach 1913, D-5170, Jülich 1, Federal Republic of Germany

    K. H. Fischer

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  1. K. H. Fischer
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SFB 125 Aachen-Jülich-Köln

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Fischer, K.H. Dynamics of Ising spin glasses with infinite-range interactions near the de Almeida-Thouless line. Z. Physik B - Condensed Matter 53, 215–219 (1983). https://doi.org/10.1007/BF01388542

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  • DOI: https://doi.org/10.1007/BF01388542

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