Molecular-dynamics simulations of a Lennard-Jones binary mixture confined in a disordered array of soft spheres are presented. The single-part isle dynamical behavior of the glass former is examined upon supercooling. Predictions of mode coupling theory are satisfied by the confined liquid. Estimates of the crossover temperature are obtained by power law fit to the diffusion coefficients and relaxation times of the late alpha region. The b exponent of the von Schweidler law is also evaluated. Similarly to the bulls, different values of the exponent gamma are extracted from the power law fit to the diffusion coefficients and relaxation times.
Gallo, P., Pellarin, R., Rovere, M. (2002). Mode coupling relaxation scenario in a confined glass former. EUROPHYSICS LETTERS, 57(2), 212-218 [10.1209/epl/i2002-00563-6].
Mode coupling relaxation scenario in a confined glass former
GALLO, PAOLA;Rovere M.
2002-01-01
Abstract
Molecular-dynamics simulations of a Lennard-Jones binary mixture confined in a disordered array of soft spheres are presented. The single-part isle dynamical behavior of the glass former is examined upon supercooling. Predictions of mode coupling theory are satisfied by the confined liquid. Estimates of the crossover temperature are obtained by power law fit to the diffusion coefficients and relaxation times of the late alpha region. The b exponent of the von Schweidler law is also evaluated. Similarly to the bulls, different values of the exponent gamma are extracted from the power law fit to the diffusion coefficients and relaxation times.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
