Large positive magnetocaloric effect in a perovskite manganite

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dc.creatorMahendiran, R.
dc.creatorUeland, B. G.
dc.creatorSchiffer, P.
dc.creatorMaignan, A.
dc.creatorMartin, C.
dc.creatorHervieu, M.
dc.creatorRaveau, B.
dc.creatorIbarra, M. R.
dc.creatorMorellon, L.
dc.date2003-06-09
dc.date.accessioned2026-07-07T02:51:45Z
dc.date.available2026-07-07T02:51:45Z
dc.descriptionWe investigate the magnetothermodynamic properties of the perovskite manganite Pr0.46Sr0.54MnO3. Our data imply that the paramagnetic to antiferromagnetic transition at TN = 210 K is first order with an abrupt decrease of volume (~ 0.14 % in zero magnetic field) and is accompanied by a sharp anomaly in specific heat. Upon application of a sufficiently large magnetic field, the antiferromagnetic phase transforms into a ferromagnetic phase with a sharp increase in sample volume. This field induced transition results in a large positive magnetocaloric effect just below TN (∆Sm = 10.4 Jkg-1K-1 at H = 5.5 T), which is associated with the increasing stability of the antiferromagnetic state with decreasing temperature.
dc.description16 pages nad 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0306223
dc.identifierhttp://arxiv.org/abs/cond-mat/0306223
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21581
dc.subjectMaterials Science
dc.titleLarge positive magnetocaloric effect in a perovskite manganite
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