1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
On the dielectric susceptibility spectra of supercooled -terphenyl
Rent:
Rent this article for
USD
10.1063/1.2064667
/content/aip/journal/jcp/123/15/10.1063/1.2064667
http://aip.metastore.ingenta.com/content/aip/journal/jcp/123/15/10.1063/1.2064667
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic outline of the changes of the relaxation-time dispersion in terms of with temperature across the range from . This example displays a considerable narrowing of the distribution of relaxation times as the temperature is increased, unlike systems that follow time-temperature superposition.

Image of FIG. 2.
FIG. 2.

Dielectric loss spectra of neat -terphenyl for different temperatures. In the order of low to high peak frequency, the temperature varies from in steps of . The relaxation strength is . Data taken from Ref. 23, where only a fraction of the measurements are shown.

Image of FIG. 3.
FIG. 3.

Temperature dependence of the peak relaxation-time constant , obtained by analyzing the data of Fig. 2. The line represents according to the VFT law of Eq. (1) with , , and .

Image of FIG. 4.
FIG. 4.

Master plot of the dielectric loss data of neat -terphenyl shown in Fig. 2. The abscissa is scaled using the peak frequency , the ordinate is scaled as . This graph demonstrates that time-temperature superposition is applicable across the present temperature range.

Image of FIG. 5.
FIG. 5.

Dielectric loss spectra of neat -terphenyl measured at two temperatures, 258 and , taken from Ref. 25. The lines are KWW fits with a common exponent of . The fits were performed by Leon and Ngai; see Ref. 26.

Loading

Article metrics loading...

/content/aip/journal/jcp/123/15/10.1063/1.2064667
2005-10-18
2014-04-17
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: On the dielectric susceptibility spectra of supercooled o-terphenyl
http://aip.metastore.ingenta.com/content/aip/journal/jcp/123/15/10.1063/1.2064667
10.1063/1.2064667
SEARCH_EXPAND_ITEM