Theoretical description of the magnetocaloric effect in Pr0.67Sr0.33MnO3 manganite using the mean-field theory

This paper presents a theoretical description of the magnetocaloric effect in Pr0.67Sr0.33MnO3 manganite. The mean-field theory has been used around the Curie temperature to simulate the temperature dependence of the magnetic entropy change under several applied magnetic fields. The obtained results were compared with experimental data computed from the Maxwell relation. The excellent agreement between the two methods confirms the validity of the mean-field theory for modeling the magnetocaloric properties of the Pr0.67Sr0.33MnO3 manganite. The validity of this theory suggests the presence of negligible critical fluctuations near the Curie temperature T-C. The magnetocaloric study indicates that our sample can be used as a magnetic refrigerant near room temperature.

Automated summary

This paper presents a theoretical description of the magnetocaloric effect in Pr0.67Sr0.33MnO3 manganite. The mean-field theory is used to simulate the temperature dependence of the magnetic entropy change under several applied magnetic fields around the Curie temperature. The results obtained from the mean-field theory are compared with experimental data, and the excellent agreement between the two methods suggests the validity of the theory for modeling the magnetocaloric properties of the manganite. The study also indicates that the sample can be used as a magnetic refrigerant near room temperature.