We have grown epitaxial films of La_(0.67)Sr_(0.33)MnO_3 (LSMO) and La_(0.67)Ca_(0.33)MnO_3 (LCMO) on single crystalline LaAlO_3 substrates by a cost effective polymer-assisted deposition technique. Film crystallinity, microstructure, resistivity, magnetization, and magnetoresistance (MR) were highly dependent on the annealing temperature in the film processing. High negative MR values of -50% (at 305 K) and -88% (at 250 K) were observed at magnetic field of 5 T, for high temperature annealed LSMO and LCMO films, respectively. These results are comparable to those for films grown by pulsed laser deposition and rf sputtering techniques.
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