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On relaxations and aging of various glasses.

Proceedings of the National Academy of Sciences of the United States of America (2012-02-09)
Ariel Amir, Yuval Oreg, Yoseph Imry
ABSTRACT

Slow relaxation occurs in many physical and biological systems. "Creep" is an example from everyday life. When stretching a rubber band, for example, the recovery to its equilibrium length is not, as one might think, exponential: The relaxation is slow, in many cases logarithmic, and can still be observed after many hours. The form of the relaxation also depends on the duration of the stretching, the "waiting time." This ubiquitous phenomenon is called aging, and is abundant both in natural and technological applications. Here, we suggest a general mechanism for slow relaxations and aging, which predicts logarithmic relaxations, and a particular aging dependence on the waiting time. We demonstrate the generality of the approach by comparing our predictions to experimental data on a diverse range of physical phenomena, from conductance in granular metals to disordered insulators and dirty semiconductors, to the low temperature dielectric properties of glasses.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Indium(III) oxide, 99.99% trace metals basis
Sigma-Aldrich
Indium(III) oxide, 99.998% trace metals basis
Sigma-Aldrich
Indium(III) oxide, nanopowder, <100 nm particle size (TEM), 99.9% trace metals basis