Tuning multi-lengthscale structures in fluids via cooling and heating cycles

Using molecular dynamics (MD) simulations we study the time evolution of domain structures in a single-component fluid upon alternate cycles of cooling and heating. Initially, the fluid is kept at a high temperature above the critical temperature Tc of a vapor-liquid transition and is instantaneously cooled to a temperature below Tc. Next, the fluid is subjected to multiple alternate cycles of heating and cooling. The resulting domains are characterized in terms of the structure factor. Formation of interesting multi-lengthscale structure is observed. Our MD results for fluids are compared to existing reports in literature from Monte-Carlo simulation of solids.