• DocumentCode
    3539625
  • Title

    Fine-tuning of magnetoresistance in Nd0.5(Ca,Sr)0.5MnO3 system

  • Author

    Cheng, S.L. ; Chou, Y.J. ; Lin, J.G.

  • Author_Institution
    Center for Condensed Matter & Sci., Nat. Taiwan Univ., Taipei, Taiwan
  • fYear
    2005
  • fDate
    4-8 April 2005
  • Firstpage
    1887
  • Lastpage
    1888
  • Abstract
    In this work, ionic size or the radius of A-site cation A> was utilized for the fine-tuning of the magnetoresistance (MR) of Nd0.5Ca0.5-ySryMnO3. The values of A> were set to be from 1.182 Å to 1.20 Å. The highest MR ratio was obtained to be ∼ 800% at 50 K in the samples with y = 0.08. Furthermore, the "spin valve" like behavior was observed at 100 K at the same sample, which may have originated from the melting of charge ordering.
  • Keywords
    antiferromagnetic materials; calcium compounds; colossal magnetoresistance; ferromagnetic materials; neodymium compounds; strontium compounds; 0 to 7 T; 10 to 300 K; A-site cation radius; Nd0.5Ca0.5-ySryMnO3; charge ordering melting; ionic size; magnetoresistance fine-tuning; spin valve; Antiferromagnetic materials; Colossal magnetoresistance; Conductivity; Doping; Insulation; Magnetic field measurement; Magnetization; Neodymium; Phase measurement; Temperature;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
  • Print_ISBN
    0-7803-9009-1
  • Type

    conf

  • DOI
    10.1109/INTMAG.2005.1464377
  • Filename
    1464377
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3539625