Thermomagnetic properties of Co1−xZnxFe2O4 (x=0.1–0.5) nanoparticles

Monodispersed nanocrystalline Co1–xZnxFe2O4 particles by forced hydrolysis: Synthesis and characterization

“…The values of T B for CoFe 2 O 4, Co 0.8 Zn 0.2 Fe 2 O 4 and Co 0.6 Zn 0.4 Fe 2 O 4 are 221, 202 and 142 K, respectively. As mentioned above, the smaller T B , the spin canting effect [20] and the lower T C [21] lead to the faster decrease of M s in the Zn-rich sample, appearing as smaller M s of the sample with x ¼ 0.4 compared to that of the sample with x ¼ 0.2.…”

“…However, at room temperature, the M s of the sample with x ¼ 0.4 becomes smaller than that of the sample with x ¼ 0.2. The reason may be attributed to the spin canting effect in the Zn-rich sample [20], the decrease of Curie temperature, T C , when increasing Zn substitution [21] and the faster decrease of the magnetization due to the lower blocking temperature in the sample with x ¼ 0.4 as shown by the temperature dependent of AC-susceptibilities.…”

Preparation and magnetic property analysis of monodisperse Co–Zn ferrite nanospheres

“…To date, many methods have been developed to prepare Co 1−x Zn x Fe 2 O 4 nanoparticles, such as the co-precipitation method [8,10,11], the usual ceramic technique [12], the forced hydrolysis method [13], the standard solid-state reaction technique [9], the microwave-hydrothermal method [14], and the PEGassisted hydrothermal method [15]. However, research on the self-assembled Co 1−x Zn x Fe 2 O 4 nanoparticles is comparatively limited, so attention was focused on developing a new method of preparing Co 1−x Zn x Fe 2 O 4 nanoparticles and studying the properties of the as-prepared nanoparticles.…”

Magnetic Properties of Co0.5Zn0.5Fe2O4Nanoparticles Synthesized by a Template-Assisted Hydrothermal Method

“…To date, many methods have been developed to prepare Co 1-x Zn x Fe 2 O 4 nanopowders, such as the coprecipitation method [6,8,10], the standard solid-state reaction technique [7,11], the forced hydrolysis method [12], the microwavehydrothermal method [13], and the hydrothermal method [14]. However, research on the template-assisted synthesis of Co 1-x Zn x Fe 2 O 4 nanoparticles is comparatively limited.…”