Relaxation to steady states of a binary liquid mixture around an optically heated colloid.

  title={Relaxation to steady states of a binary liquid mixture around an optically heated colloid.},
  author={Takeaki Araki and Juan Ruben Gomez-Solano and Anna Maciołek},
  journal={Physical review. E},
  volume={105 1-1},
We study the relaxation dynamics of a binary liquid mixture near a light-absorbing Janus particle after switching on and off illumination using experiments and theoretical models. The dynamics is controlled by the temperature gradient formed around the heated particle. Our results show that the relaxation is asymmetric: The approach to a nonequilibrium steady state is much slower than the return to thermal equilibrium. Approaching a nonequilibrium steady state after a sudden temperature change… 
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