Abstract
A study investigating the effect of Sn substitution on the magnetocaloric properties of Mn3Ga(1−x)SnxC compounds reveals that the nature of the magnetocaloric effect (MCE) has a strong dependence on the nature of the magnetic ordering. For small amounts of Sn (x ≤ 0.2), the MCE is of the inverse type, wherein an increase in the applied field beyond 5 T gives rise to a table like temperature dependence of the entropy due to a coupling between the first order ferromagnetic (FM)–antiferromagnetic (AFM) transition and the field induced AFM–FM transition. Replacement of Ga by larger concentrations of Sn (x ≥ 0.71) results in a change of the MCE to a conventional type with very little variation in the position of (ΔSM)max with increasing magnetic field. This has been explained to be due to the introduction of local strain by A site ions (Ga/Sn), which affect the magnetostructural coupling in these 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.
