Synthesis and Structural Characterizations of Multi-Crystalline La0.5Ba0.5MnO3 Nanowires: A "Multi-Nuclei" Growth Mode

Authors: Liang, C.Y.; Che, R.C.; Yang, H.X.; Li, J.Q.

Source: Journal of Nanoscience and Nanotechnology, Volume 8, Number 7, July 2008 , pp. 3577-3581(5)

Publisher: American Scientific Publishers

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Abstract:

Multi-crystalline La0.5Ba0.5MnO3 Nanowires have been synthesized with cationic surfactant at 220 °C. The structure, composition and physical property of the as-prepared nanowires have been characterized by a series of techniques including XRD, SEM, HRTEM, electron energy-loss spectroscopy (EELS) and magnetic measurements. It is found that the La0.5Ba0.5MnO3 nanowire has the typical cubic perovskite structure, each nanowire is composed of many small crystalline grains with different orientations. Valance state of manganese ion in La0.5Ba0.5MnO3 nanowires is determined by EELS technique. A "multi-nuclei" growth mode is proposed based on the microstructure analysis. The temperature dependence of magnetization has been briefly discussed.

Keywords: LA0.5BA0.5MNO3 NANOWIRES; SYNTHESIS; CHARACTERIZATION

Document Type: Research article

DOI: 10.1166/jnn.2008.160

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