Abstract
The present work reveals an especial agreement between the experimental results and the continuous curves investigated by the numerical calculations in (1−x)La0.7Ca0.2Sr0.1MnO3/xLa0.7Ca0.15Sr0.15MnO3 composite system. Moreover, the ability to adjust the magnetic entropy change in a large temperature range is revealed to be possible by the mixture of both individual phases La0.7Ca0.2Sr0.1MnO3 and La0.7Ca0.15Sr0.15MnO3. Our samples have been synthesised using the solid state method. Rietveld refinements of the X-ray diffraction patterns show that both samples are single phase. The Curie temperature TC is found to be 308K and 338K for La0.7Ca0.2Sr0.1MnO3 and La0.7Ca0.15Sr0.15MnO3, respectively. Moreover, the magnetic entropy change and the Relative Cooling Power (RCP) values were estimated. We have shown that the optimum magnetocaloric effect at μ0H=2T has been found for the composition with x=0.45, which exhibits a table-like ΔS curve with a peak value slightly lowered and strongly expanded when comparing with the parent compounds.
Sign-in/Register to access full text options 
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.
