Effects of severe plastic deformation on the magnetic properties of terbium.

We report on the magnetic and magnetocaloric properties of Terbium ribbons subjected by cold rolling. The magnetic entropy change Δ<italic>S</italic> = 8.66 J/(kg·K) and adiabatic temperature change Δ<italic>T</italic> = 4.38 K for a bulk sample of Terbium in an external magnetic field change of 1.9 T are larger by about 12% and 26% respectively, than those values of cold rolled Terbium. The changes are fully reversible and can be fully restored by an additional annealing. [ABSTRACT FROM AUTHOR]