Influences of Structure Disorder and Temperature on Properties ofProton Conductivity in Hydrogen-Bond MolecularSystems

Abstract

The dynamic properties of proton conductivity along hydrogen-bondedmolecular systems, for example, ice crystal, with structure disorder ordamping and finite temperatures exposed in an externally appliedelectric-field have been numerically studied by Runge–Kutta way in oursoliton model. The results obtained show that the proton-soliton is veryrobust against the structure disorder including the fluctuation of the forceconstant and disorder in the sequence of masses and thermal perturbation anddamping of medium, the velocity of its conductivity increases withincreasing of the externally applied electric-field and decreasing of thedamping coefficient of medium, but the proton-soliton disperses for quitegreat fluctuation of the force constant and damping coefficient. In thenumerical simulation we find that the proton-soliton in our model isthermally stable in a large region of temperature of T⩽273 K underinfluences of damping and externally applied electric-field in ice crystal.This shows that our model is available and appropriate to ice.