Kolat, V. S.Izgi, T.Kaya, A. O.Bayri, N.Gencer, H.Atalay, S.2024-08-042024-08-0420100304-88531873-4766https://doi.org/10.1016/j.jmmm.2009.09.071https://hdl.handle.net/11616/94904In this study, magnetic and magnetocaloric properties of Pr0.68Ca0.32-xSrxMnO3 (x=0, 0.1, 0.18, 0.26 and 0.32) compounds were investigated. X-ray results indicated that all the samples have a single phase of orthorhombic symmetry. The orthorhombic unit cell parameters increase with the increase in Sr content. Large negative magnetic entropy changes (-26.2 J/kg K at 38 K and 5 T for x=0 and -6.5 J/kg K at 83 K and 6 T for x = 0.1) were attributed to ultrasharp metamagnetic transitions. The peak value of Delta S-m decreased from -4.1 J/kg K for x=0.18 sample to -2.4 J/kg K for x=0.32 at 1 T magnetic field. (C) 2009 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/closedAccessManganitesMagnetocaloric effectMagnetic entropy changeMetamagnetic transitionArticle322442743310.1016/j.jmmm.2009.09.0712-s2.0-70449109224Q2WOS:000271772200009Q2