Abstract
The crystal structure, magnetic and thermodynamic properties of polycrystalline Tb1-xDyxNi2 intermetallic compounds with x = 0.25, 0.5 and 0.75 have been investigated. Experimental data on thermodynamic properties, i.e. the isothermal entropy change ΔSmag, are compared with results of theoretical calculations which were performed considering a model Hamiltonian that includes the crystalline electric field effects and exchange magnetic interaction.High-field isothermal magnetic entropy change was calculated according to magnetic measurements using thermodynamic Maxwell's relation. A large entropy change has been observed for all Dy concentrations. The maximum relative cooling power (RCP) of studied compounds reaches fairly high values, which are close to those reported for other magnetic refrigerants operating at temperatures below 40 K. The obtained results show that studied compounds can be considered as cooling agents in magnetic refrigerators performing an Ericsson cycle in the temperature range 20–40 K.
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.
