Magnetic properties of (SrFe12O19)x(CaCu3Ti4O12)1–x composites

• Published in: Journal of experimental and theoretical physics Vol. 123; no. 1; pp. 127 - 133
• Main Authors: Eremina, R. M., Sharipov, K. R., Yatsyk, I. V., Lyadov, N. M., Gilmutdinov, I. F., Kiiamov, A. G., Kabirov, Yu. V., Gavrilyachenko, V. G., Chupakhina, T. I.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.07.2016; Springer Nature B.V
• Subjects: Classical and Quantum Gravitation; Composite materials; Curie temperature; Disorder; Elementary Particles; Magnetic measurement; Magnetic properties; Magnetic resonance; Magnetism; Order; Particle and Nuclear Physics; Phase Transition in Condensed System; Physics; Physics and Astronomy; Quantum Field Theory; Relativity Theory; Resonance lines; Solid State Physics
• ISSN: 1063-7761; 1090-6509
• DOI: 10.1134/S1063776116070177

New composite materials (SrFe 12 O 19 ) x (CaCu 3 Ti 4 O 12 ) 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 microinclusions in the (SrFe 12 O 19 ) 0.05 (CaCu 3 Ti 4 O 12 ) 0.95 composite “magnetize” CaCu 3 Ti 4 O 12 at temperatures from 300 to 200 K, forming a ferrimagnetic particle near the SrFe 12 O 19 “core.” The magnetic resonance line below 200 K splits into two lines corresponding to SrFe 12 O 19 and CaCu 3 Ti 4 O 12 . The core effect decoration is manifested in the increase in the Curie–Weiss temperature from 25 K in CaCu 3 Ti 4 O 12 without the doping ceramics to 80 K in the composite with 5% of SrFe 12 O 19 .