Transition from two-dimensional to three-dimensional melting in Langmuir-Blodgett films

Role of substrate in melting behavior of Langmuir–Blodgett films

“…The assignment of diffraction peaks is (01 11)  and (10) of distorted hexagonal lattice structure, in conformity with earlier works [32][33][34]. This rapid decrease in Δγ signals transformation to a hexaticlike phase [32][33][34]. The results…”

“…In literature distorted hexagonal lattice structure of Cd arachidate multilayer has been reported [7,[32][33][34]. Existence of a hexaticlike phase has been clearly evidenced in such studies.…”

“…Even in thick films of cadmium arachidate, low dimensionality effects have been observed in the surface region [33], while CdA LB film of same thickness confined between two metallic layers shows a lack of additional smectic phase [34]. Before melting transition the distorted hexagonal lattice structure of CdA LB film transform to hexaticlike phase with increasing temperature [32][33][34].…”

“…Melting of LB films as a function of film thickness has been extensively studied in the literature [7,[28][29][30][31][32]. In literature distorted hexagonal lattice structure of Cd arachidate multilayer has been reported [7,[32][33][34].…”

Phase-dependent premelting of self-assembled phosphonic acid multilayers

“…Studies of melting have been performed on bulk, surface, and interface states of inorganic compounds [2][3][4]. Organic systems were also investigated and reveal that in some particular conditions the sample history, film thickness, and amount of piled layers strongly affect the observed transitions [5][6][7][8].…”