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Structure and physical properties of La0.1Bi0.9-xEuxFeO3 compounds

Liu Yan-Hui Li Jing-Bo Luo Jun Ji Li-Na Zhang Ji-Ye Rao Guang-Hui Liang Jing-Kui

Structure and physical properties of La0.1Bi0.9-xEuxFeO3 compounds

Liu Yan-Hui, Li Jing-Bo, Luo Jun, Ji Li-Na, Zhang Ji-Ye, Rao Guang-Hui, Liang Jing-Kui
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  • Received Date:  28 April 2008
  • Accepted Date:  12 May 2008
  • Published Online:  05 May 2008

Structure and physical properties of La0.1Bi0.9-xEuxFeO3 compounds

  • 1. (1)中国科学院物理研究所北京凝聚态物理国家实验室,北京 100190; (2)中国科学院物理研究所北京凝聚态物理国家实验室,北京 100190;中国科学院国际材料物理中心,沈阳 110016

Abstract: In this work, La0.1Bi0.9-xEuxFeO3 compounds were prepared by solid-state reaction. The phase relation at room temperature was investigated by X-ray powder diffraction. A rhombohedral (R3c) phase exists for x≤0.05; for 0.08≤x≤0.12 a pseudo-R3c phase is found; for x≥0.15 it is an orthorhombic (Pbnm) phase, while the distortion of the Pbnm phase was observed for the composition range of 0.15≤x≤0.20. Magnetic measurements indicate that weak ferromagnetism exists in all the compounds, and for the compounds with x≤0.20 the magnetic moment has the maximum value at x=0.12. The composition dependence of dielectric constant was investigated at room temperature. The relationship between the structure and the physical properties was discussed.

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