Magnetic properties of Sn-substituted Ni–Zn ferrites synthesized from nano-sized powders of NiO, ZnO, Fe2O3, and SnO2. (June 2017)

• Record Type: Journal Article
• Authors: Ali, MA; Uddin, MM; Khan, MNI; Chowdhury, FUZ; Hoque, SM; Liba, SI
• Is Part Of: Chinese physics B. Volume 26:Number 7(2017)
• Publication Date: 2017-06
• Subjects: magnetic properties -- saturation magnetization -- permeability -- Curie temperature; 75.50.Bb -- 75.50.Gg -- 75.60.Ej -- 75.50.Ss; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1674-1056/26/7/077501
• Languages: English
• ISSNs: 1674-1056

Abstract

Abstract: A series of Ni0.6− x /2 Zn0.4− x /2 Sn x Fe2 O4 ( x = 0.0, 0.05, 0.1, 0.15, 0.2, and 0.3) (NZSFO) ferrite composities have been synthesized from nano powders using a standard solid state reaction technique. The spinel cubic structure of the investigated samples has been confirmed by x-ray diffraction (XRD). The magnetic properties such as saturation magnetization ( M s ), remanent magnetization ( M r ), coercive field ( H c ), and Bohr magneton ( μ ) are calculated from the hysteresis loops. The value of M s is found to decrease with increasing Sn content in the samples. This change is successfully explained by the variation of A – B interaction strength due to Sn substitution in different sites. The compositional stability and quality of the prepared ferrite composites have also been endorsed by the fairly constant initial permeability ( μ ′ ) over a wide range of frequency. The decreasing trend of μ ′ with increasing Sn content has been observed. Curie temperature T C has been found to increase with the increase in Sn content. A wide spread frequency utility zone indicates that the NZSFO can be considered as a good candidate for use in broadband pulse transformers and wide band read-write heads for video recording. The composition of x = 0.05 shows unusual results and the possible reason is also mentioned with the established formalism.