Paper Title:
Structure and Magnetic Properties of Co2.73Fe0.27O4 Synthesized by the Heat-Decomposition Method
  Abstract

Co2.73Fe0.27O4 nanoparticles were synthesized using the heat-decomposition method followed by annealing treatment. X-ray diffraction (XRD) analysis shows that most of the peaks are close to the data for antiferromagnetic Co3O4, while weak peaks of CoFe2O4 are also detected. It indicates that the prepared particles can be reckoned as a composite with a small size of the FM particles embed in a large thickness of the AFM matrix. The magnetic hysteresis loops of Co2.73Fe0.27O4 powders were measured at 10 K by using the zero-field cooling (ZFC) and field cooling (FC) procedures and show negative and downward shifts, and the shifts finally disappear when temperature increases to 200 K. We suggest that exchange bias effect in Co2.73Fe0.27O4 is mainly related with the exchange interactions at the interfaces between the FM CoFe2O4 nanoparticles and the frozen spins around them.

  Info
Periodical
Solid State Phenomena (Volumes 181-182)
Chapter
V. Related Materials
Edited by
Yuan Ming Huang
Pages
352-355
DOI
10.4028/www.scientific.net/SSP.181-182.352
Citation
Z. H. Gan, J. B. Guo, J. Liu, Z. H. Lu, "Structure and Magnetic Properties of Co2.73Fe0.27O4 Synthesized by the Heat-Decomposition Method", Solid State Phenomena, Vols. 181-182, pp. 352-355, 2012
Online since
November 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jeong Hwan Jeong, Hyung Mi Lim, Dae Sung Kim, Ung Yu Paik, Seung Ho Lee
Abstract:Zinc oxide(ZnO) has been widely applied in the fields of cosmetics, paint, coating and gas sensor. Size down of ZnO is essential for the...
461
Authors: Zheng Min Li, Zhi Wei Chen, Min Tan, Ke Jing Xu, Bing Jiang
Abstract:Nano-TiO2 coating film is one of the efficient photocatalysts. The particle size distribution of TiO2 has important influence on...
22
Authors: Hong Ying Dong, Kai Ming Huang, Ying Yue Teng, Yan Ping Ren, Zhi Cheng Jia, Zhen Zhu Cao, Wen Ma
Environmental Catalysis and Environmental Friendly Materials
Abstract:TiO2 nano powder doping with Sn4+ was directly synthesized by a low temperature hydrothermal method using tetrabutyl...
1591
Authors: Ming Zhu Zhang, Qiang Wang
Chapter 1: Manufacturing Technology and Processing
Abstract:This paper mainly introduces the principle of preparation for nano-materials via vapor-phase technics, the design and assembly of...
384
Authors: Qiang Wang, Ling Na Sun, Chang Wen Hu, Chuan Bao Cao
Chapter 1: Material Engineering and its Application Technology
Abstract:With the continuous development of Electronic Warfare Technology (ECM) and new requirements of military modernization, stealthy technology...
73