Electric Fluctuation of Supercooling Liquid Glycerol in Metastable State and Crystallization Process

Abstract

A selected spectrum (central frequency f: 10 kHz, band width Δf: 200 Hz) of the fluctuating voltage that is generated spontaneously between two electrodes which are filled with liquid glycerol, is investigated. It satisfies the Nyquist’s equation in normal liquid and metastable supercooling liquid. In the non-equilibrium state (crystallization process), the enormous fluctuations are observed; the distributions of the voltage are no more the Gaussian distribution and form a characteristic group.