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Title: Structure Characterization and Magnetic Properties of Ln0.7Pb0.3MnO3 (Ln=La, Nd, and Pr) Manganites
Authors: Young, S. L.;Chen, Y. C.;Horng, Lance;Wu, T. C.;Chang, J. C.
Contributors: 物理學系
Keywords: Rhombohedral;Orthorhombic;ZFC;FC;Manganite;Spin-glass
Date: 2002-02
Issue Date: 2013-02-05T02:18:10Z
Publisher: Elsevier
Abstract: Ln 0.7Pb0.3MnO3 (Ln=La, Nd, Pr) oxides have been synthesized by using the conventional ceramic method. The
magnetic measurements show that Tc values alter considerably by substituting different rare earth ions. The zero field
cooled (ZFC) magnetization curve of La manganite shows almost the same magnitude with the field cooled (FC);
however, the curve of Nd manganite drops to zero at low temperatures. The magnetization is hardly saturated by the
external field for Pr and Nd manganites due to the spin-glass nature. These facts are in good agreement with the lower
ionic radii of the Nd ions and the corresponding large distortion of their perovskite structures. r 2002 Elsevier Science
B.V. All rights reserved.
Relation: Journal of Magnetism and Magnetic Materials, 239(1-3): 11-13
Appears in Collections:[物理學系] 期刊論文

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