Effect of Co content on magnetic features and SPIN states IN Ni–Zn spinel ferrites. Issue 9 (1st May 2021)

• Record Type: Journal Article
• Authors: Sherstyuk, D.P.; Starikov, A. Yu; Zhivulin, V.E.; Zherebtsov, D.A.; Gudkova, S.A.; Perov, N.S.; Alekhina, YuA.; Astapovich, K.A.; Vinnik, D.A.; Trukhanov, A.V.
• Is Part Of: Ceramics international. Volume 47:Issue 9(2021)
• Page Start: 12163
• Page End: 12169
• Publication Date: 2021-05-01
• Subjects: Ferrites -- Ni–Zn spinels -- Magnetization -- High and low spin; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2021.01.063
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The manuscript contains data on the effect of the Co content on the magnetic properties of Zn0·3 Ni0·7 Fe2 O4 spinels, in which Ni 2+ ions are partially substituted by Co 2+ ions. Ferrites were produced via solid-state reaction from a mixture of oxides. All samples are single-phase with a spinel-type structure (SG: Fd-3m). The linear increase in the lattice parameters with increasing cobalt content was explained by the difference in ionic radii Co 2+ /Ni 2+ . The effect of the Co 2+ content on the magnetic characteristics of Ni–Zn ferrites was established. Curie temperature decreased from 419 °C to 326 °C with increasing Co content from x = 0.0 to 0.7, respectively. At the same time, an increase in Ms ; Mr and Hc was observed due to the larger magnetic moment of the Co 2+ ion in comparison with Ni 2+ . Non-linear concentration dependence of the magnetic characteristics was discussed in terms of the Co 2+ spin states.