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Evidence for Glass and Spin-Glass Phase Transitions From the Dynamic Susceptibility

Published

Author(s)

D Bitko, S N. Coppersmith, R L. Leheny, S R. Nagel, T F. Rosenbaum, N Menon

Abstract

We present evidence that there is a phase transition, with a diverging static susceptibility, underlying the transformation of a liquid into a glass. The dielectric susceptibility, at frequencies above its characteristic value, shows a power-law tail extending over many decades to higher frequencies. An extrapolation of this behavior to the temperature where the dynamics becomes arrested indicates a diverging susceptibility. We present evidence for analogous behavior in the magnetic susceptibility of a para-magnet approaching the spin-glass transition. The similarity of the response in these two glassy systems suggests that some conventional lore, such as that the spin glass shows evidence for a diverging correlation length only in a nonlinear but not in the linear susceptibility, may be invalid.
Citation
Journal of Research (NIST JRES) -
Volume
102 No. 2

Keywords

dielectric susceptibility, glass transition, magnetic susceptibility, nonlinear susceptibility, specific-heat spectroscopy, spin-glass transition

Citation

Bitko, D. , Coppersmith, S. , Leheny, R. , Nagel, S. , Rosenbaum, T. and Menon, N. (1997), Evidence for Glass and Spin-Glass Phase Transitions From the Dynamic Susceptibility, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD (Accessed February 28, 2024)
Created March 1, 1997, Updated February 17, 2017