The dynamic susceptibility of propylene carbonate in the moderately viscous regime above Tc is reinvestigated by incoherent neutron and depolarised light scattering, and compared to dielectric loss and solvation response. Depending on the strength of α relaxation, a more or less extended β scaling regime is found. Mode-coupling fits yield consistently λ=0.72 and Tc=182K, although different positions of the susceptibility minimum indicate that not all observables have reached the universal asymptotics.
@article{arxiv.cond-mat/9908476,
title = {Propylene Carbonate Reexamined: Mode-Coupling $\beta$ Scaling without Factorisation ?},
author = {J. Wuttke and M. Ohl and M. Goldammer and S. Roth and U. Schneider and P. Lunkenheimer and R. Kahn and B. Rufflé and R. Lechner and M. A. Berg},
journal= {arXiv preprint arXiv:cond-mat/9908476},
year = {2009}
}