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ZhETF, Vol. 150, No. 1, p. 144 (July 2016)
(English translation - JETP, Vol. 123, No. 1, p. 127, July 2016 available online at )

Magnetic properties of (SrFe12O19)x(CaCu3Ti4O12)1-x composites
Eremina R.M., Sharipov K.R., Yatsyk I.V., Lyadov N.M., Gilmutdinov I.F., Kiiamov A.G., Kabirov Yu.V., Gavrilyachenko V.G., Chupakhlina T.I.

Received: December 27, 2015

DOI: 10.7868/S0044451016070130

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New composite materials (SrFe12O19)x(CaCu3Ti4O12)1-x (x=0, 0.05, 1) have been synthesized. Their magnetic properties are studied in the temperature range 5-300 K using the magnetic resonance and magnetometry methods. It is found that strontium hexaferrite micro inclusions in the (SrFe12O19)0.05(CaCu3Ti4O12)0.95 composite ``magnetize'' CaCu3Ti4O12 at temperatures from 300 to 200 K, forming a ferrimagnetic particle near the SrFe12O19 ``core''. The magnetic resonance line below 200 K splits into two lines corresponding to SrFe12O19 and CaCu3Ti4O12. The core effect decoration is manifested in the increase in the Curie-Weiss temperature from 25 K in CaCu3Ti4O12 without the doping ceramics to 80 K in the composite with 5% of SrFe12O19.

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