Elaboration,caracterisation et proprietes magnetiques de cristaux d'oxyde Sm2O3 |
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Authors: | Jean-Claude Bernier Anne-Marie Lejus Robert Collongues |
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Affiliation: | Department Science des Materiaux ENSCS, BP 296/R8 67008 Strasbourg, France;Matériaux de Haute Température et Désordres Structuraux — ERA 387 E.N.S.C.P. 11, Rue P. et M. Curie Paris 5e, France |
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Abstract: | Single crystals of samarium oxide Sm2O3 with monoclinic B structure were prepared by the Verneuil process adapted to a plasma torch. Some properties of these crystals have been studied (cleavage, hardness …) especially the magnetic properties. Paramagnetic susceptibilities measurements have been performed for various orientations of the crystal with respect to the magnetic field at constant temperatures (5, 77, 300 K) as well as at increasing temperatures (5–1000 K) and indicate an anisotropy. An interpretation of this phenomena is proposed. |
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