The Structure and Ferromagnetic Properties of the Single Phase Bi0.95Eu0.05Fe0.95Co0.05O3 Nanoparticles Prepared by Sol-Gel


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Bi0.95Eu0.05Fe0.95Co0.05O3 Nanoparticles sample was prepared by sol-gel process. The microstructure of samples was analysised by X-ray diffraction(XRD), the result indicated that it was the single phase rhombohedral perovskite structure. The morphology of samples was measured by scanning electron microsopy(SEM), the SEM photograph of samples indicated that the nanoparticles of Bi0.95Eu0.05Fe0.95Co0.05O3 sample were small than that of BiFeO3. The valence states of Fe ions in the samples was analysised by the X-ray absorption spectroscopy(XAS). The XAS of Fe2p showed that it was the mixed valence states (Fe2+ and Fe3+) of Fe ions in samples, and the binding energy of Bi0.95Eu0.05Fe0.95Co0.05O3 was bigger than that of BiFeO3.The magnetic characteristics of the samples were measured by vibrating sample magnetometer (VSM),the results showed that the weak metamagnetism were obtained from clear hysteresis loop and the magnetic saturation reached 0.408emu/g,compared with BiFeO3 sample, the magnetic properties were significantly enhanced.



Key Engineering Materials (Volumes 512-515)

Edited by:

Wei Pan and Jianghong Gong




X. A. Li et al., "The Structure and Ferromagnetic Properties of the Single Phase Bi0.95Eu0.05Fe0.95Co0.05O3 Nanoparticles Prepared by Sol-Gel", Key Engineering Materials, Vols. 512-515, pp. 1434-1437, 2012

Online since:

June 2012




[1] M. Fiebig, T. Lottermoser, D. Fröhlich, et al, Observation of coupled magnetic and electric domains, Nature. 419 (2002) 818-820.


[2] J. Wang, J.B. Neaton, H . Zheng, et al, Epitaxial BiFeO3 multiferroic thin film heterostructures, Science. 299 (2003) 1719-1722.


[3] Eerenstein, W. Mathur, N. D. Scott, et al, Multiferroic and magnetoelectric materials, Nature. 442 (2006) 759-765.


[4] G.C. James, F. Scott, Physics and Applications of Bismuth Ferrite, Adv. Mater. 21 (2009) 2463-2485.

[5] N.A. Hill, Why Are There so Few Magnetic Ferroelectrics, Journal of Physical Chemistry B. 104 (2000) 6694-6709.

[6] Y. Sun, Z.F. Huang, H.G. Fan, et al, First-principles investigation on the role of ions in Ferroelectric transition of BiFeO3, Acta Phys Sinica. 58.

[1] (2009) 193-200.

[7] Kiselev, S. V. Ozerov, R. P. Zhdanov, et al, Detection of Magnetic Order in Ferroelectric BiFeO3 by Neutron Diffraction, Sov. Phys. Dokl. 7 (1963) 742-744.

[8] Y.H. Chu, L.W. Martin, M. B. Holcomb, et al, Controlling magnetism with multiferroics, Materials Today. 10.

[10] (2007) 16-23.

[9] Y.H. Lee, J.M. Wu, C.H. Lai, Influence of La doping in multiferroic properties of BiFeO3 thin films , Applied Physics Letters. 88 (2006) 042903.


[10] X.Q. Zhang,Y. Sui, X. J Wang, et al, Effect of Eu substitution on the crystal structure and multiferroic properties of BiFeO3, Journal of Alloys and Compounds. 507 (2010) 157-161.


[11] W.W. Hu, Y. Chen, H.M. Yuan, et al, Structure, Magnetic, and Ferroelectric Properties of Bi1-xGdxFeO3 Nanoparticles, J. Phys. Chem. C . 115 (2011) 8869-8875.

[12] A. Gaur, P. Singh, N. Choudhary, et al, Structural, optical and magnetic properties of Nd-doped BiFeO3 thin films prepared by pulsed laser deposition, Physica B. 406 (2011) 1877-1882.


[13] S.K. Pradhan, J. Das, P.P. Rout, et al, Effect of holmium substitution for the improvement of multiferroic properties of BiFeO3, Journal of Physics and Chemistry of Solids. 71 (2010) 1557-1564.


[14] S. Basu, S. M. Hossain, D. Chakravorty, Enhanced magnetic properties in hydrothermally synthesized Mn-doped BiFeO3 nanoparticles, Current Applied Physics. 11(2011) 976-980.


[15] Q.Y. Xu, H.F. Zai, D. Wu, et al, The magnetic properties of BiFe0. 95Co0. 05O3 ceramics, Applied Physics Letters. 95(2009) 112510.

[16] Z. Wen, X. Shen, D. Wu, et al, Enhanced ferromagnetism at the rhombohedral–tetragonal phase boundary in Pr and Mn co-substituted BiFeO3 powders, Solid State Comm., 150(2010) 2081-(2084).


[17] D. Kothari, V. R. Reddy, A. Gupta, Study of the effect of Mn doping on the BiFeO3 system, J. Phys. Condens. Matter. 19 (2007) 075403.

[18] C. D. Hu, Relationship between ferroelectricity and Dzyaloshinskii-Moriya interaction in multiferroics and the effect of bond-bending, Phys. Rev. B, 77 (2008) 174418.