Magnetocaloric and Magnetic Properties of Bilayer Manganite

The structure of bilayer manganite La2SrMn2O7 has been investigated using the Monte Carlo simulations. Thermal magnetization of bilayer manganite system was investigated. We have given the dM/dT as a function of temperatures to find the transitions temperatures. The magnetic transition from ferromagnetic to paramagnetic is found. The second-order phase transition is found at the transition temperature. The temperature dependence of the magnetic entropy changes of temperatures of La2SrMn2O7 bilayer manganite for a several external magnetic fields was found. The field dependence of relative cooling power of La2SrMn2O7 bilayer manganite is given. Finally, the magnetic hysteresis cycle of bilayer manganite system was given. The superparamagnetic behavior has been found around the transition temperature.