Molecular hydrodynamic theory of nonresonant Raman spectra in liquids: Fifth-order spectra.

Autor: Denny, R. Aldrin, Reichman, David R.
Předmět:
Zdroj: Journal of Chemical Physics; 2/1/2002, Vol. 116 Issue 5, p1987, 8p, 5 Graphs
Abstrakt: Building upon the framework of the preceding paper, a molecular hydrodynamic theory of the fifth-order (two-dimensional) nonresonant Raman spectrum in a simple liquid is presented. A multi-time mode-coupling-like theory is developed and compared with recent computer simulations for liquid Xe. The theory is able to provide a microscopic rationale for the absence of an echo in this system. Experimental predictions for the temperature and density dependence of the signal are presented. Comparison is made with the instantaneous-normal-mode theory. The limitations of the present approach are discussed.© 2002 American Institute of Physics. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index