Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Irreversibility and Thermoremanent Magnetization in Y0.8Sr0.2MnO3

  • Ismail, Agustina (Department of Physics, Hankuk University of Foreign Studies) ;
  • Yansen, W. (Department of Physics, Hankuk University of Foreign Studies) ;
  • Rajagukguk, R. (Department of Physics, Hankuk University of Foreign Studies) ;
  • Kwon, Y.M. (Department of Physics, Hankuk University of Foreign Studies) ;
  • Kim, J. (Department of Physics, Hankuk University of Foreign Studies) ;
  • Lee, B.W. (Department of Physics, Hankuk University of Foreign Studies)
  • Received : 2012.02.23
  • Accepted : 2012.06.11
  • Published : 2012.09.30
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Abstract

Irreversible magnetization between the zero-field-cooled (ZFC) and field-cooled (FC) states in $Y_{1-x}Sr_xMnO_3$ (x=0 and 0.2) was investigated. $YMnO_3$ and $Y_{0.8}Sr_{0.2}MnO_3$ have a hexagonal structure and the lattice parameter a decreases from 7.4408 ${\AA}$ to 7.4327 ${\AA}$ while c increases from 12.2244 ${\AA}$ to 12.2287 ${\AA}$ for $YMnO_3$ and $Y_{0.8}Sr_{0.2}MnO_3$, respectively. An anomaly is observed at around 74 K in ZFC and FC magnetization measurements for $YMnO_3$, whereas in $Y_{0.8}Sr_{0.2}MnO_3$ the ${\sigma}_{ZFC}$ and ${\sigma}_{FC}$ are split at low temperature, indicating glass-like behavior.

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References

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