Abstract
The magnetocaloric behavior of LaCaMn1−xFexO3 for x = 0.00, 0.02, 0.03, 0.05, 0.07, 0.08 and 0.10 under the influence of an external magnetic field was simulated and analyzed. Simulations were carried out using the Monte Carlo method and the classical Heisenberg model under the Metropolis algorithm. These mixed valence manganites are characterized by having three types of magnetic ions corresponding to , which are bonded with , and and , related to . The ions were randomly included, replacing ions. With this model, the magnetic entropy change, , in an isothermal process was determined. showed maximum peaks around the paramagnetic-ferromagnetic transition temperature, which depends on doping. Relative cooling power was computed for different concentrations varying the magnetic applied field. Our model and results show that the doping decreases the magnetocaloric effect in the LaCaMn1−xFexO3, making this a bad candidate for magnetic refrigeration. The strong dependence of the magnetocaloric behavior on doping and the external magnetic field in LaCaMn1−xFexO3 can boost these materials for the future technological applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
