Publication
Journal of Applied Physics
Paper

Amorphously packed, frustrated hierarchical models: Chaotic rescaling and spin-glass behavior

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Abstract

Hierarchical Ising models have been constructed with competing ferromagnetic and antiferromagnetic interactions, and solved exactly. As frustration is increased, a low-temperature phase is encountered, characterized by chaotic renormalization-group trajectories. This spin-glass phase is microscopically described in terms of subsets of spins which are strongly correlated, yet noncontiguous. Further, the amorphous packing of real systems is approximated in these models by a random distribution of shapes at various hierarchical levels, which eliminates unphysical limit cycle behavior in favor of chaos.

Date

01 Dec 1982

Publication

Journal of Applied Physics

Authors

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