論文

2015年8月

Observation of Nano Sized Effect on EPR of Mn4+ and Cr3+ in SrTiO3 Powders

FERROELECTRICS
  • A. G. Badalyan
  • ,
  • D. V. Azamat
  • ,
  • V. A. Trepakov
  • ,
  • M. V. Makarova
  • ,
  • J. Rosa
  • ,
  • A. Dejneka
  • ,
  • L. Jastrabik

485
1
開始ページ
63
終了ページ
67
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1080/00150193.2015.1060797
出版者・発行元
TAYLOR & FRANCIS LTD

The chromium doped SrTiO3 nanopowders with particles size of 100, 50, 20nm sizes have been synthesized and studied by Electron Paramagnetic Resonance (EPR). Along with chromium impurity it was found the powder contained small concentration of manganese as a residential impurity. Mn4+ ions on Ti4+ lattice sites were identified, with spin-Hamiltonian parameters closed to even in the bulk material. It was found that the linewidth depends on particle size. This effect may be traced back to changes of the small parameter of fine structure D due to its dependence on the particle size of the individual nanocrystallite. It seems, the most of Cr3+ ions did not substitute for Ti4+ and form some phase at the surface of SrTiO3 particles.

Web of Science ® 被引用回数 : 4

リンク情報
DOI
https://doi.org/10.1080/00150193.2015.1060797
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000365068000009&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84947966669&origin=inward

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