Issues regarding MSD

hi

i am working on ionic mixtures, i am getting more fluctuations in the MSD plots, can u suggest me why these many fluctuations are happening, what may be the reason

Thank you

K.RAKESH.

hi

i am working on ionic mixtures, i am getting more fluctuations in the MSD
plots, can u suggest me why these many fluctuations are happening, what may
be the reason

too short a trajectory?

axel.

It’s probably just your small sample size (# of atoms * number of statistically independent measurements). There is nothing unusual about getting fluctuations in msd of a “small” sample, and thousands of atoms can still be “small”.

Rob