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Calcium Rubidium Nitrate: Mode-Coupling Beta Scaling Without Factorization

M Goldammer, C Losert, J Wuttke, W Petry, F Terki, H Schober, P Lunkenheimer

Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Aug;64(2 Pt 1):021303.

PMID: 11497574

Abstract:

The fast dynamics of viscous calcium rubidium nitrate is investigated by depolarized light scattering, neutron scattering, and dielectric loss. Fast beta relaxation evolves as in calcium potassium nitrate. The dynamic susceptibilities can be described by the asymptotic scaling law of mode-coupling theory with a shape parameter lambda=0.79; the temperature dependence of the amplitudes extrapolates to T(c) approximately equal 378 K. However, the frequencies of the minima of the three different spectroscopies never coincide, in conflict with the factorization prediction, indicating that the true asymptotic regime is unreachable.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP13126120 Rubidium nitrate Rubidium nitrate 13126-12-0 Price
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