Glassy Aging with Modified Kohlrausch-Williams-Watts Form

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dc.creatorGupta, Bhaskar Sen
dc.creatorDas, Shankar P.
dc.date2007-12-27
dc.date.accessioned2026-07-07T08:51:22Z
dc.date.available2026-07-07T08:51:22Z
dc.descriptionIn this report we address the question whether aging in the non equilibrium glassy state is controlled by the equilibrium alpha-relaxation process which occur at temperatures above Tg. Recently Lunkenheimer et. al. [Phys. Rev. Lett. 95, 055702 (2005)] proposed a model for the glassy aging data of dielectric relaxation using a modified Kohlrausch-Williams-Watts (KWW) form. The aging time dependence of the relaxation time is defined by these authors through a functional relation involving the corresponding frequency but the stretching exponent is same as the alpha-relaxation stretching exponent. We present here an alternative functional form directly involving the relaxation time itself. The proposed model fits the data of Lunkenheimer et. al. perfectly with a stretching exponent different from the alpha-relaxation stretching exponent.
dc.description1 TeX file, 10 eps figures
dc.identifierhttps://arxiv.org/abs/0712.4193
dc.identifierhttp://arxiv.org/abs/0712.4193
dc.identifierPhysical Review E 76, 061502 2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144916
dc.subjectSoft Condensed Matter
dc.titleGlassy Aging with Modified Kohlrausch-Williams-Watts Form
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