Abstract
The way useful information regarding structural relaxation can be assessed from light scattering in the glass is shown using a novel ensemble-average technique. Dynamic light scattering (DLS) measurements performed on glass forming orthoterphenyl reveal an inequality between time and ensemble average correlation functions near and below the calorimetric glass transition temperature, and hence demonstrate ergodicity breaking. The ensemble averaged measurements provide a measure of the so-called non-ergocity parameter below glass transition temperature. The DLS results for orthoterphenyl indicate that the function form for non-ergodicity parameter is consistent with Mode Coupling theory predictions.
| Original language | English |
|---|---|
| Pages (from-to) | 189-194 |
| Number of pages | 6 |
| Journal | Unknown Journal |
| Volume | 455 |
| State | Published - 1997 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
Cite this
Time and ensemble averaged dynamic light scattering in orthoterphenyl above and below the glass transition. / Sidebottom, David L.; Sorensen, C. M.
In: Unknown Journal, Vol. 455, 1997, p. 189-194.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Time and ensemble averaged dynamic light scattering in orthoterphenyl above and below the glass transition
AU - Sidebottom, David L.
AU - Sorensen, C. M.
PY - 1997
Y1 - 1997
N2 - The way useful information regarding structural relaxation can be assessed from light scattering in the glass is shown using a novel ensemble-average technique. Dynamic light scattering (DLS) measurements performed on glass forming orthoterphenyl reveal an inequality between time and ensemble average correlation functions near and below the calorimetric glass transition temperature, and hence demonstrate ergodicity breaking. The ensemble averaged measurements provide a measure of the so-called non-ergocity parameter below glass transition temperature. The DLS results for orthoterphenyl indicate that the function form for non-ergodicity parameter is consistent with Mode Coupling theory predictions.
AB - The way useful information regarding structural relaxation can be assessed from light scattering in the glass is shown using a novel ensemble-average technique. Dynamic light scattering (DLS) measurements performed on glass forming orthoterphenyl reveal an inequality between time and ensemble average correlation functions near and below the calorimetric glass transition temperature, and hence demonstrate ergodicity breaking. The ensemble averaged measurements provide a measure of the so-called non-ergocity parameter below glass transition temperature. The DLS results for orthoterphenyl indicate that the function form for non-ergodicity parameter is consistent with Mode Coupling theory predictions.
UR - http://www.scopus.com/inward/record.url?scp=0030706933&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030706933&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0030706933
VL - 455
SP - 189
EP - 194
JO - Nuclear Physics A
JF - Nuclear Physics A
SN - 0375-9474
ER -