Multilayers of Y-type bilayers of pure and mixed erbium palmitate(EP), nona
decanate(Er) and behenate(EB) on CaF2 substrates were prepared by conventio
nal Langmuir-Blodgett (LB) method. II is demonstrated that two systems comp
osed of alternating bilayer of different fatty acid salts are unidimensiona
l superlattices. These LB films were characterized by means of x-ray photoe
lectronic Spectrometry (XPS), FTIR and x-ray diffraction (XRD) measurements
.