Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2009, Vol. 30 ›› Issue (3): 396-399.DOI: -

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Microstructural study of layered colossal magnetoresistance material La1.2-xNdxSr1.8 Mn2O7

Wang, Ming-Guang (1); Qi, Yang (1)   

  1. (1) School of Sciences, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-03-15 Published:2013-06-22
  • Contact: Qi, Y.
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Abstract: The microstructure of layered colossal magnetoresistance material La1.2-xNdxSr1.8 Mn2O7 (x=0.2) was investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and high-resolution electron microscopy (HREM). The results showed that La1.2-xNdxSr1.8 Mn2O7 (x=0.2) is of tetragonal structure and Nd-doping has not evidently changed its structure. HREM results showed that many defects exist in the Nd-doped oxide La1.2 Sr1.8Mn2O7, such as intergrowth structures formed between matrix and other RP phase, (101) crystallographic shear structures and some more complicated defective structures.

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