Figure 6
From: Crystallisation in a two-dimensional granular system at constant temperature

(a) The average number of the bounded neighbours, \(<n^{''}_{B}>\), considering two or more particles in contact with a given particle for the initial and the final configurations as a function of the effective temperature. (b) The behaviour of the average values of the sixth bond orientational order parameter, \(<\Psi ^{''}_{6}>\), for two o more bounded neighbours for each particle as a function of the magnetic field. The parameter is depicted for the initial and the final configurations.