Very Low Frequency ($<$1 mHz) Magnetic Noise in La$_{0.67}$ Ca $_{0.33}$ MnO$_{3}$ Films

We report an occurrence of very low-frequency ($<$1 mHz) resistance fluctuations (noise) in a rare-earth perovskite manganite film. This fluctuation is distinct from 1/f noise and is larger than that. The fluctuation arises due to coupling to magnetization fluctuation. It reaches a peak close to the ferromagnetic Curie temperature T$_{C}$. The magnetic nature of the transition has been established by sensitivity of the noise to a very low applied magnetic field $<$0.1 Tesla. The magnetization fluctuation has been calculated from the resistance fluctuation using the directly measured magnetoresistance. The magnetization fluctuations show peak at a temperature close to but lower than T$_{C}$ and shows a nontrivial dependence on the applied magnetic field.