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Glassy and Crystalline States in a Model without Disorder: Spin Analog of a Structural Glass

Published online by Cambridge University Press:  10 February 2011

Lei Gu  and
Bulbul Chakraborty
Lei Gu
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254, USA, [email protected]
Bulbul Chakraborty
Affiliation:
Department of Physics, Brandeis University, Waltham, MA 02254, USA, [email protected]
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Abstract

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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 455: Symposium T – Glasses and Glass Formers–Current Issues , 1996 , 229
Copyright
Copyright © Materials Research Society 1997

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References

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