Time-temperature superposition in viscous liquids

Details Time-temperature superposition in viscous liquids Time-temperature superposition in viscous liquids

2000-06-09

arxiv.org/abs/cond-mat/0006165v1

Phys. Rev. Lett. 86, 1271 (2001).

Physics

Condensed Matter

Soft Condensed Matter

4 pages

Scientific paper

10.1103/PhysRevLett.86.1271

Dielectric relaxation measurements on supercooled triphenyl phosphite show that at low temperatures time-temperature superposition (TTS) is accurately obeyed for the primary (alpha) relaxation process. Measurements on 6 other molecular liquids close to the calorimetric glass transition indicate that TTS is linked to an $\omega^{-1/2}$ high-frequency decay of the alpha loss, while the loss peak width is nonuniversal.

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