Monte Carlo Simulation of Janus Rods and Comparison to Corresponding RISM Integral Equation Theory Results

 

Conclusion

 

Both high density and low density simulations yielded interesting, preliminary, results. High density cases showed, what may be, the onset of microphase separation and some sort or local nematic ordering. The site averaged radial distribution functions seemingly match the RISM results qualitatively even when the system is still not believed to be fully equilibrated. The proposed structures from the RISM approach do not seem to occur readily but instead a parallel alignment of the rods does instead. These structures cannot be ruled out though as much more work on this is in progress. The low density cases;on the other hand, showed what might, still be, a nematic ordering. Lower density systems (ex. packing fraction of 0.001) need to be simulated to determine what is causing this ordering (simulation related caveat – local minimum/not equilibrated/etc., or actually physically justified).

100,000 iterations are not enough to simulate such a system as evident from the traces and visuals of the systems. Future work will include calculating the radial distribution function for much more than what was already displayed, looking at much lower densities, and much longer runs for all systems. Other initializations are going to be looked at as the initial conditions could be lingering around in our simulations. Other initial conditions will be based one some hypothesized energetically favorable structures This system has not been exhausted and there is much more work to do to confirm or refute what was shown so far as well running more tests to further support the validity of our code which was done 99% in house. 

 

 

    Introduction

    Experimental

Results/Discussion

Abstract

 

Acknowledgments