Abstract
Detail investigation on the influence of Gd-doping both in the magnetic and magnetocaloric properties of (Sm1-yGdy)0.55Sr0.45MnO3 (y = 0.5 and 0.7) compounds has been carried out. With the Gd-content, the studied compounds exhibit quite distinct physical properties in the presence of an external magnetic field. In addition to the field-induced meta-magnetic transition and quantitatively large magnetocaloric effect, both the compounds reveal significant relative cooling power and refrigerant capacity. However, in the low temperature region, different nature in magnetocaloric effect was addressed by considering the field induced modification of short-range ordering.
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