Hostname: page-component-5c6d5d7d68-vt8vv Total loading time: 0.001 Render date: 2024-08-25T18:12:28.600Z Has data issue: false hasContentIssue false

Quasi-Elastic Neutron Scattering Study of the Fragile Glass-Former Salol

Published online by Cambridge University Press:  10 February 2011

J. Toulouse
Affiliation:
Department of Physics, Lehigh University, Bethlehem, PA 18018, USA
R. Pick
Affiliation:
LDMC, ERS 115, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris, France
C. Dreyfus
Affiliation:
LDMC, ERS 115, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris, France
Get access

Abstract

Quasi-elastic neutron scattering (NS) measurements of Salol have been carried out in order to study the α and β relaxations near the liquid-glass transition. The results are presented in the form of a susceptibility spectrum that is compared with the corresponding spectrum obtained from light scattering (LS) and with the predictions from the Mode Coupling Theory. The differences between the NS and LS results are due to the different correlators contributing to the susceptibility in the two types of scattering. The possible origin of these differences are discussed in the framework of the Mode Coupling Theory.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Li, G., Du, W.M., Sakai, A., Cummins, H.Z., Phys. Rev. A 46, 3343 (1992).Google Scholar
2. Dixon, P.K., Wu, L., Nagel, S.R., Williams, B.D., Carini, J.P., Phys. Rev. Lett. 65, 1108 (1990).Google Scholar
3. Dixon, P.K., Phys. Rev.. B 42, 8179 (1990).Google Scholar
4. Toulouse, J., Coddens, G., Pattnaik, R., Physica A 201, 305 (1993).Google Scholar
5. Angell, C.A., in Proceedings of the Workshop on Relaxations in Complex Systems, eds. Ngai, K.L. and Wright, G.B. (National Technical Information Service, US Dpt. of Commerce, Springfield, VA, 1984).Google Scholar
6. Gotze, W. and Sjogren, L., Rep. Prog. Phys. 55, 241 (1992).Google Scholar
7. Wuttke, J. et al., Phys. Rev. Lett. 72, 3052 (1994).Google Scholar
8. Lovesey, S.W., in Theory of Neutron Scattering from Condensed Matter, Oxford (1984) p.177.Google Scholar
9. Cummins, H.Z. et al., Phys. Rev. E52, January 1 st, 1996.Google Scholar
10. Berne, B. and Pecora, R., in Dynamic Light Scattering, Krieger, R.E. (1990) p. 15.Google Scholar
11. Gotze, W., Franosch, T., A. Singh (private communication).Google Scholar