VinaR - Repository of the Vinča Nuclear Institute
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   Vinar
  • Vinča
  • WoS Import
  • View Item
  •   Vinar
  • Vinča
  • WoS Import
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Valence state dependent room-temperature ferromagnetism in Fe-doped ceria nanocrystals

No Thumbnail
Authors
Dohcevic-Mitrovic, Z. D.
Paunović, Novica M.
Radović, Marko B.
Popović, Zoran V.
Matović, Branko
Cekić, Božidar Đ.
Ivanovski, Valentin N.
Article
Metadata
Show full item record
Abstract
Room-temperature ferromagnetism was observed in undoped and Fe(2+(3+))-doped CeO(2) nanocrystals. In Fe-doped samples the enhancement of ferromagnetic ordering occurs by changing the valence state of Fe ions, whereas Raman spectra demonstrated strong electron-molecular vibrational coupling and increase in oxygen vacancy concentration. Air annealing showed degradation of ferromagnetic ordering and appearance of hematite phase in Fe(3+)-doped sample. The observed ferromagnetic coupling in Fe-doped samples, associated with the presence of magnetic ions mediated by single charged O(2-) vacancies, demonstrated that valence state of dopant has a strong influence on magnetic properties of CeO(2) nanoparticles. (C) American Institute of Physics. [doi: 10.1063/1.3431581]
Keywords:
annealing / cerium compounds / ferromagnetic materials / iron / magnetic particles / nanoparticles / Raman spectra / vacancies (crystal) / valence bands
Source:
Applied Physics Letters, 2010, 96, 20
Projects:
  • Serbian MSTD [141047], SASA [F-134]

DOI: 10.1063/1.3431581

ISSN: 0003-6951 (print)

WoS: 000277969700051

Scopus: 2-s2.0-77953008775
[ Google Scholar ]
33
35
URI
http://vinar.vin.bg.ac.rs/handle/123456789/4007
Collections
  • WoS Import
Institution
Vinča

DSpace software copyright © 2002-2015  DuraSpace
About VinaR - Repository of the Vinča Institute of Nuclear Sciences | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About VinaR - Repository of the Vinča Institute of Nuclear Sciences | Send Feedback

OpenAIRERCUB