Abstract

After thin solid films of calcium stearate are formed on the substrates of KCl, mica and amorphous carbon film kept at 25°C in 1×10-6 Torr, they are annealed at 50-75°C for 10-60 min. As-deposited films consist of slender crystals 100-500 nm in length, in which molecules orient parallel to the surface. During annealing at 50°C, the growth hillocks grow to 1 µm or recrystallize to form plate crystals, in which molecules are arranged normal to the surface. With the substrates at 75°C, single crystals with a size of several µm can be obtained, in which molecules stand against the surface.

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