Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments
10.1016/s0022-3093(98)00581-x
Crossref journal-article
Elsevier BV
Journal of Non-Crystalline Solids (78)
Bibliography

Böhmer, R., Chamberlin, R. V., Diezemann, G., Geil, B., Heuer, A., Hinze, G., Kuebler, S. C., Richert, R., Schiener, B., Sillescu, H., Spiess, H. W., Tracht, U., & Wilhelm, M. (1998). Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments. Journal of Non-Crystalline Solids, 235–237, 1–9.

Authors 13
  1. R. Böhmer (first)
  2. R.V. Chamberlin (additional)
  3. G. Diezemann (additional)
  4. B. Geil (additional)
  5. A. Heuer (additional)
  6. G. Hinze (additional)
  7. S.C. Kuebler (additional)
  8. R. Richert (additional)
  9. B. Schiener (additional)
  10. H. Sillescu (additional)
  11. H.W. Spiess (additional)
  12. U. Tracht (additional)
  13. M. Wilhelm (additional)
References 46 Referenced 197
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  18. This distribution function is usually written as g(τ), see e.g. C.J.F. Böttcher, P. Bordewijk, Theory of Electric Polarization, vol. II, Elsevier, Amsterdam, 1978
  19. This measure of heterogeneity relates to a specific functional form for intrinsic and macroscopic responses, but it is obvious that analogous definitions can be given for other forms
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  23. The G4(t) function of interest here involves three experimentally adjustable mixing times. The first is set to tfilter, the second, treq, should be zero (for technical reasons treq=1 ms in the present experiments, see Ref. [6]), and the third is the variable mixing time t.
  24. Here we use the mean values of the parameters characterizing the 〈cos(ω1tp)cos(ω2tp)〉 and the 〈cos[(ω1−ω2)tp]〉 functions, see Ref. [4]
  25. See also the results obtained for a polymer as discussed in Ref. [5]
  26. Different measures of heterogeneity and homogeneity however also based on 3t-CFs were introduced by A. Heuer, S.C. Kuebler, U. Tracht, H.W. Spiess, Appl. Magn. Reson. 12 (1997) 183 (10.1007/BF03162185)
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  30. Note that the heterogeneity of response functions is due to a distribution of dynamically distinguishable contributions, while e.g. in optical or NMR spectroscopy the inhomogeneous broadening is often due the presence of (static) molecular orientations or local configurations etc
  31. Some further complications arise due to the finite evolution time tp in the NMR experiment. As discussed in Ref. [5] even for random rotational jumps deviations from βin=1 can occur. However, via simulations in principle they can be taken into account, see Ref. [6]
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  40. Non-Gaussian propagators are well known when dealing with restricted diffusion, however in the present discussion we focus on overall spatially uniform systems
  41. Of course also in systems describable by a single Fickian diffusion coefficient, different particles in a given time in general move across different distances which obviously is not the issue of concern here
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Dates
Type When
Created 22 years, 4 months ago (April 7, 2003, 10:33 a.m.)
Deposited 5 years, 7 months ago (Jan. 15, 2020, 4:15 a.m.)
Indexed 2 weeks ago (Aug. 7, 2025, 4:51 a.m.)
Issued 27 years ago (Aug. 1, 1998)
Published 27 years ago (Aug. 1, 1998)
Published Print 27 years ago (Aug. 1, 1998)
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@article{B_hmer_1998, title={Nature of the non-exponential primary relaxation in structural glass-formers probed by dynamically selective experiments}, volume={235–237}, ISSN={0022-3093}, url={http://dx.doi.org/10.1016/s0022-3093(98)00581-x}, DOI={10.1016/s0022-3093(98)00581-x}, journal={Journal of Non-Crystalline Solids}, publisher={Elsevier BV}, author={Böhmer, R. and Chamberlin, R.V. and Diezemann, G. and Geil, B. and Heuer, A. and Hinze, G. and Kuebler, S.C. and Richert, R. and Schiener, B. and Sillescu, H. and Spiess, H.W. and Tracht, U. and Wilhelm, M.}, year={1998}, month=aug, pages={1–9} }