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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/058/05-06/1013-1017

    • Keywords

       

      Raman scattering; colossal magnetoresistance; polaron; manganite

    • Abstract

       

      We report polarized Raman scattering in single crystals of Nd0.7Sr0.3MnO3. The temperature dependence of the MnO6 octahedral bending and stretching modes observed in the XX spectra points to the existence of local lattice distortions, possibly polarons. The XY spectra have been analyzed using a collision-dominated model, which allows the extraction of the carrier scattering rate.

    • Author Affiliations

       

      M Pattabiraman1 G Rangarajan1 Kwang-Yong Choi2 P Lemmens2 G Guentherodt2 G Balakrishnan3 DMcK Paul3 MR Lees3

      1. Department of Physics, Indian Institute of Technology, Chennai, India
      2. II. Physikalisches Institut, RWTH, Aachen, Aachen - 52056, Germany
      3. Department of Physics, University of Warwick, Coventry - CV4 7AL, UK

    • Dates

       
      Published
      6 May 2002

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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