Study of the magnetic phase transitions and magnetocaloric effect in Dy2Cu2In compound

• Magnetic properties and magnetocaloric effect in Dy2Cu2In was studied.
• The Dy2Cu2In undergoes 2 s order magnetic phase transitions.
• A large reversible MCE was observed in Dy2Cu2In.
• The origin of MCE and its potential application in Dy2Cu2In were discussed.

The magnetic properties and magnetocaloric effect (MCE) in Dy2Cu2In compound have been investigated. Dy2Cu2In undergoes two magnetic phase transitions, a paramagnetic to ferromagnetic (FM) at TC ∼ 49.5 K followed by a spin reorientation (SR) at TSR ∼ 19.5 K. For a magnetic field change of 0–7 T, the maximum values of the magnetic entropy change (−ΔSMmax) are estimated to be 16.5 around TC and 6.7 J/kg K around TSR with a large relative cooling power (RCP) value of 617 J/kg. The modified Arrott plots and universal curves of the rescaled ΔSM confirmed that the magnetic phase transitions in Dy2Cu2In compound belongs the second order phase transitions. The present results may provide some clues to search for new magnetocaloric materials belonging to RE2T2X system.