Structural and magnetic properties of nanocrystalline Mg–Cd ferrites prepared by oxalate co-precipitation method

Structural and magnetic studies of Mg(1−x)ZnxFe2O4 nanoparticles prepared by a solution combustion method

“…The magnetic moment n B is calculated from the hysteresis data using the following relationship [21] n [23]. concentration.…”

Synthesis, characterization and magnetic properties of La3+ added Mg–Cd ferrites prepared by oxalate co-precipitation method

“…Grain size Ga (m) X-ray density The average crystallite size 'D' is calculated from the (3 1 1) XRD peak using Debye Scherrer's relationship [27,28].…”

“…The results of the porosity 'P' are presented in Table 1. The porosity increases because both physical and X-ray density increases with increase in Cd 2+ content and it is higher than pure Mg-Cd ferrite due to addition of La 3+ ions [27]. It is well known that the porosity of the samples results from two sources, intragranular porosity (P intra ) and intergranular (P inter ) porosity.…”

“…The high frequency absorption band ( 1 ) is caused by scratching vibrations of the tetrahedral metal-oxygen bond and low frequency absorption band ( 2 ) is caused by the metal-oxygen vibrations in octahedral sites [34]. The difference in frequencies of 1 and 2 is due to changes in the bond length Fe 3+ -O 2− at tetrahedral and octahedral site [26,27]. Thus from the X-ray analysis it is found that La 3+ partially dissolved in material, substitute for Fe 3+ at octahedral site.…”

Structural, electrical and magnetic properties of cadmium substituted nickel–copper ferrites

“…The lattice parameter increases due to the increase of cadmium content in the ferrites because of its higher ionic radius compared to other ions in the ferrites. Several researchers have studied the structural, electrical and magnetic properties of substituted ferrites like Ni-Co-Cu [1], Ni-Cd-Zn [12], Ni-Cd [11,[13][14][15], Ni-Cu [16], Mg-Cd [17] and Ni-Mn-Mg [18] mixed ferrites by different methods. However, the literature survey on Ni-Cd-Cu ferrites indicates that not much work has been done on these ferrites.…”