Glassy Dynamics in a Model without Disorder: Spin Analog of a Structural Glass

Details Glassy Dynamics in a Model without Disorder: Spin Analog of a Structural Glass Glassy Dynamics in a Model without Disorder: Spin Analog of a Structural Glass

1996-12-11

arxiv.org/abs/cond-mat/9612103v1

Physics

Condensed Matter

Statistical Mechanics

6 pages, 4 figures

Scientific paper

We have analyzed a non-randomly frustrated spin model which exhibits behavior remarkably similar to the phenomenology of structural glasses. The high-temperature disordered phase undergoes a strong first-order transition to a long-range ordered structure. Using Monte Carlo simulations, we have studied the behavior of the supercooled state by quenching to temperatures below this transition temperature. For a range of supercooling, the system remains ergodic and exhibits dynamics characteristic of supercooled liquids. Below a certain characteristic temperature, however, the system freezes into a "glassy" phase. In this phase, the system is non-ergodic and evolves through a distribution of traps characterized by a power-law distribution of trapping times. This change in the dynamic behavior is concurrent with the appearance of a shear instability.

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