Thermoelectric power studies of Cu–Co ferrites

Structural, electrical and magnetic properties of Co–Cu ferrite nanoparticles

“…C gb = 1 R gb ω gb (19) by using the above two relations the relaxation time for grain and grain boundary were calculated. Fig.…”

“…Enhanced magnetic properties of Co-Cu-Zn ferrite were reported by Mane et al [17]. Cu-Co ferrites for their different properties have been reported in the literature [18][19][20]. But ac impedance of the crystalline Co-Cu ferrite, which is under investigation, with a chemical formula CoFe 2−x Cu x O 4 (0 ≤ x ≤ 0.5) was not well studied and reported in the literature.…”

Tuning the microstructural and magnetic properties of CoFe2O4/SiO2 nanocomposites by Cu2+ doping

“…Designing the composition through the incorporation of divalent metal ions (such as Zn 2+ , Mn 2+ , Cu 2+ , and Ni 2+ ) serves as a exible strategy to tune the cation distribution of CoFe 2 O 4 nanoparticles (NPs), which may be benecial to further modify their physical properties or introduce novel functionalities. [8][9][10] Recently Co-Cu ferrite, prepared through doping Cu 2+ in CoFe 2 O 4 NPs has been widely exploited for a variety of technological applications. Venkateshwarlu et al 8 reported that the increasing Seebeck coefficient was observed in CoFe 2 O 4 aer doping with Cu 2+ ions.…”

“…[8][9][10] Recently Co-Cu ferrite, prepared through doping Cu 2+ in CoFe 2 O 4 NPs has been widely exploited for a variety of technological applications. Venkateshwarlu et al 8 reported that the increasing Seebeck coefficient was observed in CoFe 2 O 4 aer doping with Cu 2+ ions. The enhanced effect of Cu 2+ doping on photocatalytic degradation efficiency of CoFe 2 O 4 was reported by Sundararajan et al 4 They also found that with Cu 2+ content increasing, the saturation magnetization (M s ) decreased monotonously while the coercivity (H c ) rst increased then decreased.…”

Structural, electrical and magnetic properties of Zr–Mg cobalt ferrite

“…Cobalt ferrite, owing to strong ferromagnetism and high Curie temperature, is used in electronic appliances as it causes the materials to stay magnetized even when the applied magnetic field is turned off, leading to a useful way of storing information. Substitution of Al 3+ [10], Cr 3+ [11], Nd 3+ [12] and Ni 2+ [13] decreases the saturation magnetization in cobalt ferrite, while Zn 2+ [14,15], Zn-Zr [16], Cu 2+ [17] and Cr 3+ [11] decrease the Curie temperature (T C ) and blocking temperature (T B resistivity is an important property for the materials to be used in data storage devices. Little attention has been given to the study of electrical properties of the substituted cobalt ferrite.…”