Does frequency-temperature superposition hold in deeply super-cooled liquids?
| dc.creator | Gainaru, Catalin | |
| dc.creator | Brodin, Alexander | |
| dc.creator | Novikov, Vladimir | |
| dc.creator | Rössler, Ernst A. | |
| dc.date | 2006-04-26 | |
| dc.date.accessioned | 2026-07-07T07:05:44Z | |
| dc.date.available | 2026-07-07T07:05:44Z | |
| dc.description | The temperature evolution of the broadband $10^{-6}$-$10^{10}$ Hz dielectric susceptibility of the paradigmatic glass formers glycerol, propylene carbonate, and fluoro-aniline is analyzed assuming a three-step relaxation due to the $α$-process, its excess wing, and a $β$-process. We find that the $α$-peak and the wing can be described by susceptibility functions with temperature-independent high-frequency exponents, while the relative weight of these contributions does depend on the temperature. The excess wing and the $β$-process are distinct phenomena; in particular, the relaxation strength of the excess wing grows with decreasing the temperature, contrary to that of the $β$-process. In our interpretation, the frequency-temperature superposition of the $α$-process is valid for all temperatures; in the case of glycerol, a typical $β$-process is unambiguously identified for the first time. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0604597 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0604597 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/109771 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Soft Condensed Matter | |
| dc.title | Does frequency-temperature superposition hold in deeply super-cooled liquids? | |
| dc.type | text |