Proceedings of the Korean Magnestics Society Conference (한국자기학회:학술대회 개요집)

  • 2003.06a
  • /
  • Pages.62-63
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  • 2003
  • /
  • 2233-9485(pISSN)
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  • 2233-9574(eISSN)
The Korean Magnetics Society (한국자기학회)
권호 표지

Local structure and transport properties of $La_{0.7}Ca_{0.3-x}Ba_{x}MnO_3$ manganites

  • A.N.Ulyanov (Department of Physics, Chungbuk National University) ;
  • Yang, Dong-Seok (Physics Division, School of Science Education, Chungbuk National University) ;
  • Yu, Seong-Cho (Department of Physics, Chungbuk National University)
  • Published : 2003.06.01
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Abstract

Electron-phonon interaction plays a significant role in forming of colossal magnetoresistance effect (CMR). Polaron formation was observed by neutron diffraction and by extended X-ray absorption fine structure (EXAFS) analysis. Local probe as given by the EXAFS is a useful method to study the polaronic charge and its dependence on temperature and ions size. Here we present the EXAFS study of polaronic charge in $La_{0.7}Ca_{0.3-x}Ba_{x}MnO_3$ compositions.

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