Fluctuation,relaxation and “super-structure” in liquids the conformon model

The conformon model of liquids postulates a heterogeneous dynamic superstructure in liquids. The model predicts a universal reduced energy- and entropy-density distribution (Planck distribution) which typify together the thermodynamics of fluctuations. The mean reduced energy- and entropy density distributions are identical and invariant at all temperatures, independently of the type of molecules the liquid is comprised of. The model predicts therefore a unique superstructure at the quasi-static glass-transition temperature. Tapping-mode atomic force experiments on monolayers of bottle-brush molecules reveal a type of a superstructure which is, in fact, in good accord with the conformon model. Relaxation experiments can be described as superposition of a broad set of intra-conformon Debye-processes which is consequently related to the heterogeneous equilibrium structure. Principal aspects of the results are reflected in the paper.