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Journal of Inorganic Materials

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2007 , Vol. 22 >Issue 2: 243 - 246

DOI: https://doi.org/10.3724/SP.J.1077.2007.00243

Research Paper

Synthesis of a Series of Single-crystalline La 1-x Ca x MnO3 Nanowires by Hydrothermal Method

  • JIN Chuan-Gui ,
  • ZHANG Tao ,
  • LI Xiao-Guang
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  • 1. School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China; 2. Anhui Key Laboratory of Metal Materials and Processing, Anhui University of Technology, Maanshan 243002; 3. Department of Physics, University of Science and Technology of China, Hefei 230026

Received date: 2006-04-27

  Revised date: 2006-07-10

  Online published: 2007-03-20

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Abstract

A series of single-crystalline La 1-x Ca x MnO 3 nanowires were successfully prepared by a hydrothermal method. X-ray diffraction (XRD) results demonstrate that theLa 1-x Ca x MnO 3 nanowires have orthorhombic perovskite structure without any impurity phases. Transmission electron microscope (TEM) images clearly show that the as-synthesized samples are made up of large quantities of single crystal nanowires with lengths ranging from several to several tens of micrometers and uniform diameter (about 90nm). The high-resolution transmission electron microscope(HRTEM)investigations of La 0.5 Ca 0.5 MnO 3 nanowires indicate that the nanowires have very clean surfaces without any defects and grow along <100> direction. The result of magnetic measurement indicates that the La 0.5 Ca 0.5 MnO3 nanowires have an enhanced Tc due to the shrinkage of unit cell volume and shape anisotropy.

Key words： hydrothermal method; La1-xCaxMnO3; nanowires; magnetic measurement

Cite this article

JIN Chuan-Gui , ZHANG Tao , LI Xiao-Guang . Synthesis of a Series of Single-crystalline La 1-x Ca x MnO3 Nanowires by Hydrothermal Method[J]. Journal of Inorganic Materials, 2007 , 22(2) : 243 -246 . DOI: 10.3724/SP.J.1077.2007.00243

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