Exploring the structural, elastic, optical, dielectric and magnetic characteristics of Ca2+ incorporated superparamagnetic Zn0.5−xCa0.1Co0.4+xFe2O4 (x = 0.0, 0.05 & 0.1) nanoferrites

Influence of divalent metal ion (Zn2+) on magnetic properties, curie temperature and DC electrical properties in Ce3+ substituted Ni-Zn ferrites

“…[15][16][17][18]. More recently, semiconducting behaviours have been identified in the case of Calcium substituted Zinc cobalt ferrites Zn 0.5−x Ca 0.1 Co 0.4+x Fe 2 O 4 [19]. The Re m+ (Ce 3+ , Gd 3+ , La 3+ , and Cd 3+ ) substitution in the ferrites shows the interesting behaviour which is reported in the literature [20,21].…”

The role of thermal treatment and formulation on modifying the structural nature and optimizing certain physical features of coprecipitated superparamagnetic Co–Mn–Cr spinel ferrite

“…In the present samples, ϴ D increases with x from 690 to 780 k by increasing Cr 3+ content, as illustrated in Table 7 . This means that the crystal lattice becomes more stable when the interatomic bonding strength hardens [ 55 ].…”

Law of approach to saturation magnetization with structural and temperature variation in Ni–Zn ferrites

“…Peaks observed above 600 cm −1 has been reported to be associated with tetrahedral complexes while peaks below 600 cm −1 are associated with octahedral complexes [36,41]. It has been reported that A 1g mode originates from the symmetric stretching of metal-oxygen bonds in tetrahedral complexes while the T 2g mode is associated with the asymmetric stretching vibration of metal-oxygen bonds in the octahedral sites [42]. Also, splitting of these two peaks, namely A 1g and T 2g are often found in different studies which is usually explained in terms of variation in atomic masses of cations and metal-oxygen bond lengths which may have resulted due to factors such as compositional variation or redistribution of cations due to different processing conditions [43].…”