![]() ![]() The nucleation process of helium (He) clusters in the palladium (Pd) system is investigated via Ab initio calculations in this work. The proposal proved to be very useful for the study of the nanoparticles. It was also possible to see a good adjustment of the proposal with the change in the nanoparticles shape. Analyzing the parameters obtained through the fitting, it was possible to visualize a weakening in the ferrimagnetic coupling with increased doping of Zn. A good correspondence was obtained between the experimental data and the adjustment through the proposal. Curves were fitted with the most recent proposal by Cojocaru et al., where an expression for M(T) is derived using a three-dimensional generalization of Heisenberg’s Hamiltonian, that take into account geometry, size and boundary conditions of magnetic nanoparticles. With the data it was possible to get the MS×T experimental plots. With the data obtained through the vibrating sample magnetometry, an adjustment with the Approach law to obtain the saturation magnetization at temperatures between 50 K and 300 K was performed. The samples, with cristallite size between 40 nm and 78 nm were synthesized by the sol–gel method. ![]() The behavior of saturation magnetization as a function of temperature (MS(T)), in Zinc doped YIG nanoparticles was investigated. ![]()
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