PL EN


Preferences help
enabled [disable] Abstract
Number of results
2008 | 113 | 6 | 1695-1700
Article title

Synthesis by Wet Chemical Method and Characterization of Nanocrystalline ZnO Doped with Fe_2O_3

Content
Title variants
Languages of publication
EN
Abstracts
EN
Nanocrystalline samples of ZnO doped with Fe_2O_3 were synthetized by wet chemical method. The series of ZnO nanosized samples in the wide range of Fe_2O_3 concentration (from 5 wt.% to 95 wt.%) was prepared by precipitation from nitrate solutions using ammonia. The phase composition of the samples was determined using X-ray diffraction measurements. The phases of hexagonal ZnO, and/or rhombohedric Fe_2O_3, and/or ZnFe_2O_4 were identified. The mean crystalline size of nanocrystals, determined with the use of Scherrer's formula, varied from 8 to 52 nm. The preliminary micro-Raman spectroscopy measurements were performed. The observed features are typical of Fe doped ZnO nanoparticles. The magnetic measurements revealed the presence of different types of magnetic behavior. For samples with high Fe_2O_3 contents (above 70 wt.%) the ferromagnetic ordering was observed at room temperature. For samples with lower Fe_2O_3 contents we observed the phenomenon of superparamagnetism above the blocking temperature.
Keywords
EN
Year
Volume
113
Issue
6
Pages
1695-1700
Physical description
Dates
published
2008-06
received
2008-02-08
References
  • 1. Y. Chen, D.M. Bagnall, H. Koh, K. Park, K. Hiraga, Z. Zhu, T. Yao, J. Appl. Phys. 84, 3912 (1998)
  • 2. J. Nemeth, G. Rodriguez-Gattorno, A. Vazquez-Olmos, D. Diaz, I. Dekany, Langmuir 20, 2855 (2004)
  • 3. J.M.D. Coey, M. Venkatesan, C.B. Fitzgerald, Nat. Mater. 4, 173 (2005)
  • 4. C. Sudakar, J.S. Thakur, G. Lawes, R. Naik, V.M. Naik, Phys. Rev. B 75, 054423 (2007)
  • 5. T. Dietl, Acta Phys. Pol. A 111, 27 (2007)
  • 6. A.L. Patterson, Phys. Rev. 56, 978 (1939)
  • 7. R.Y. Sato-Berru, A. Vázquez-Olmos, A.L. Fernández-Osorio, S. Sortes-Martinez, J. Raman Spectrosc. 38, 1073 (2007)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n614kz
Identifiers
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.