Size and Shape Effect on the Curie Temperature of Gadolinium of Nanostructures: Monte Carlo Simulation

In this research, the Curie temperature of gadolinium Gd nanostructures with shapes of nanoparticle, nanorod, and thin film were simulated based on the Monte Carlo algorithm via Vampire software. Curie temperature of Gd nanoparticles decreases from 289 K to 245 K by reducing the diameter size of Gd nanoparticle from 10 nm to 1 nm. It has been observed that with constant aspect ratio and also in constant length, the Curie temperature of Gd nanorod increase by increasing the nanorod diameter. In addition, the Curie temperature increases by increasing the thickness of Gd thin film. Finally, results of this simulation are fitted on proposed equations by other researcher to extract their corresponding constants.