Time-temperature superposition in viscous liquids

Time-temperature superposition in viscous liquids

Dielectric relaxation measurements on supercooled triphenyl phosphite show that time-temperature superposition (TTS) is obeyed for the primary relaxation process at low temperatures. Measurements on other molecular liquids close to the calorimetric glass transition indicate that TTS is linked to an...

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Veröffentlicht in:Physical review letters 2001-02, Vol.86 (7), p.1271-1274
Hauptverfasser: Olsen, N B, Christensen, T, Dyre, J C
Format: Artikel
Sprache:eng
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Zusammenfassung:Dielectric relaxation measurements on supercooled triphenyl phosphite show that time-temperature superposition (TTS) is obeyed for the primary relaxation process at low temperatures. Measurements on other molecular liquids close to the calorimetric glass transition indicate that TTS is linked to an omega(-1/2) high-frequency decay of the loss, while the loss peak width is nonuniversal.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.86.1271