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The influence of Fe substitutions by R ions in a Ni---Zn Ferrite

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N. Rezlescu and E. Rezlescu

Institute of Technical Physics, Splai Bahlui 47, 6600, Ia

i, Romania

Received 6 May 1993; 

accepted 25 June 1993

by G. Bastard 

Available online 4 September 2002.

Abstract

The effect of Fe replacement by R ions on the properties of Ni_0.7Zn0.3 Fe₂O₄ ferrite was investigated. Rare earth ions (R = Yb, Er, Sm, Tb Gd, Dy and Ce) substitute the iron ions in a small amount, of 0.5 mol%. It is found that small substitutions of Fe ions by rare earths may favourably influence the magnetic and electrical properties of ferrite and, therefore, it is thus possible to obtain a good magnetic material for use in high frequency applications.

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