Magnetocaloric performance of RE₁₁Co₄ln₉ (RE = Tb, Er)

The magnetocaloric effect in RE11Co4In9 (RE = Tb, Er) has been studied by means of magnetometric measurements in the function of temperature and applied magnetic field. The maximum magnetic entropy change (-delta S-M(max) ) at magnetic flux density change (delta mu H-0) 0-9 T has been determined to be 5.51 J kg(-1) K-1 at 47.4 K for Tb11Co4In9 and 14.28 J kg(-1) K-1 at 12.3 K for Er11Co4In9, while temperature averaged entropy change (TEC) with 3 K span equals 5.50 and 14.14 J kg(-1) K-1 for RE = Tb and Er, respectively. The relative cooling power (RCP) and refrigerant capacity (RC) equal respectively 522.1 and 391.2 J kg(-1) in Tb11Co4In9 and 605.2 and 463.1 J kg(-1) in Er11Co4In9.