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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/058/05-06/1085-1088

    • Keywords

       

      Colossal magnetoresistance; layered manganites; Nd2−2xSr1+2xMn2O7

    • Abstract

       

      The layered manganite Nd2−2xSr1+2xMn2O7, with x varying between 0 and 0.5, has been synthesized using solid-state reaction method. We have found that Nd2−2xSr1+2xMn2O7 do not form the single-phase layered compound with A3B2O7 structure. Instead, mixtures of various phases, such as, orthorhombic perovskite, i.e., Nd1−zSrzMnO3, layered manganite and unreacted starting compounds, have been obtained. Except for x=0.4, which is found to be an antiferromagnetic insulator, all other x values yielded metal-insulator transition and ferromagnetic ordering.

    • Author Affiliations

       

      K Shah1 D K Aswal1 Ajay Singh1 L C Gupta2 S K Gupta1 V C Sahni

      1. Technical Physics and Prototype Engineering Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
      2. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai - 400 005, India

    • Dates

       
      Published
      6 May 2002

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