Local polarization fluctuations in an aging glass.
Polarization fluctuations were measured in nanoscale volumes of a polymer glass during aging following a temperature quench through the glass transition. Statistical properties of the noise were studied in equilibrium and during aging. The noise spectral density had a larger temporal variance during aging; i.e., the noise was more non-Gaussian, suggesting stronger correlations during aging.
Sinnathamby
K S
KS
Department of Physics, Northeastern University, Boston, Massachusetts 02115, USA.
Oukris
H
H
Israeloff
N E
NE