NDLI: Influence of isovalent and heterovalent substitution for Bi$^{3+}$ and Fe$^{3+}$ on the properties of Bi$_{2}$Fe$_{4}$O$

Content Provider	Springer Nature Link
Author	Zatsiupa, A. A. Bashkirov, L. A. Vialikanava, I. A. Petrov, G. S. Shevchenko, S. V.
Copyright Year	2016
Abstract	Bi$_{2–х }$La$_{ х }$Fe$_{4}$O$_{9}$ and Bi$_{2}$Fe$_{4–2x }$Ti$_{ x }$Co$_{ x }$O$_{9}$ ferrites have been prepared by solid-state reactions at a temperature of 1073 K. X-ray diffraction data indicate that, in the Bi$_{2–х }$La$_{ х }$Fe$_{4}$O$_{9}$ system, the limiting degree of La$^{3+}$ substitution for Bi$^{3+}$ ions in Bi$_{2}$Fe$_{4}$O$_{9}$ does not exceed 0.05 and that the limiting degree of substitution in the Bi$_{2}$Fe$_{4–2x }$Ti$_{ x }$Co$_{ x }$O$_{9}$ system lies in the range 0.05 < x < 0.1. The specific magnetization and specific magnetic susceptibility of the samples have been measured at temperatures from 5 to 300 K in a magnetic field of 0.86 T. The field dependences of magnetization obtained for the Bi$_{2–х }$La$_{ х }$Fe$_{4}$O$_{9}$ and Bi$_{2}$Fe$_{4–2x }$Ti$_{ x }$Co$_{ x }$O$_{9}$ ferrites at temperatures of 300 and 5 K demonstrate that partial isovalent substitution of La$^{3+}$ for Bi$^{3+}$ ions in Bi$_{2}$Fe$_{4}$O$_{9}$ and heterovalent substitution of Ti$^{4+}$ and Co$^{2+}$ ions for two Fe$^{3+}$ ions leads to partial breakdown of the antiferromagnetic state and nucleation of a ferromagnetic state.
Starting Page	361
Ending Page	366
Page Count	6
File Format	PDF
ISSN	00201685
Journal	Inorganic Materials
Volume Number	52
Issue Number	4
e-ISSN	16083172
Language	English
Publisher	Pleiades Publishing
Publisher Date	2016-03-31
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	bismuth ferrite magnetization magnetic susceptibility effective magnetic moment Inorganic Chemistry Industrial Chemistry/Chemical Engineering Materials Science
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Chemical Engineering Inorganic Chemistry

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