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

Published

March 1, 1997

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

NIST Pub Series

Journal of Research (NIST JRES)

Pub Type

NIST Pubs

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 April 19, 2024)