Effect of Er3+ and Pr3+ on the structural, magnetic and dielectric properties of Zn-Co ferrite synthesised via co-precipitation method

被引：16

作者：

Bitar Z. ^{[1
]}

Abdeen W. ^{[2
,3
]}

Awad R. ^{[1
]}

机构：

[1] Physics Department, Faculty of Science, Beirut Arab University, Beirut

[2] Superconductivity and Metallic Glass Lab, Physics Department, Faculty of Science, Alexandria University, Alexandria

[3] Physics Department, University College at Al-Gamom, Umm Al-Qura University, Al-Gamom

来源：

Materials Research Innovations | 2020年 / 24卷 / 02期

关键词：

electric properties; magnetic properties; rare earth element; Zinc cobalt nano ferrite;

D O I：

10.1080/14328917.2019.1611252

中图分类号：

学科分类号：

摘要：

Zn-Co ferrites doped with Er3+ and Pr3+ with different concentrations were synthesised by co-precipitation method at constant calcination temperature. XRD results show an increase in the lattice parameter. Particle sizes determined from TEM are close to those determined from XRD, confirming PVP acts as controlling of the nanoparticles growth. Electron paramagnetic resonance (EPR) spectra analysis indicates that the spin-spin relaxation time T2 increases and the g-factor decreases with increasing Er3+ and Pr3+ content. The saturation magnetisation and the coercivity decrease with increasing RE3+ content. The dielectric constants ε’ and ε” and the dielectric loss tangent (tanδ) decrease, and the a.c. conductivity increases with the increase of Er3+ concentration between 0.00 wt% and 0.20 wt%; the same trend is observed for samples doped with Pr3+ of concentrations 0.04, 0.12 and 0.20 wt%, while that doped with 0.08 wt% of Pr3+ shows a peak at low frequency. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.

引用

页码：104 / 112

页数：8

共 39 条

[1]

Neuberger T., Schopf B., Hofmann H., Et al., Superparamagnetic nanoparticles for biomedical applications: possibilities and limitations of a new drug delivery system, J Magn Magn Mater, 293, pp. 483-496, (2005)

[2]

Valenzuela R., Novel applications of ferrites, Phys Res Int, 2012, (2012)

[3]

Urcia-Romero S., Perales-Perez O., Gutierrez G., Effect of Dy-doping on the structural and magnetic properties of Co-Zn ferrite nanocrystals for magnetocaloric applications, J Appl Phys, 107, (2010)

[4]

Suguna S., Shankar S., Jaganathan S.K., Et al., Novel synthesis of spinel MnxCo1−xAl2O4 (x = 0.0 to 1.0) nanocatalysts: effect of Mn2+ doping on structural, morphological, and opto-magnetic properties, J Supercond Nov Magn, 30, pp. 691-699, (2017)

[5]

Ahmed M., Bishay S., Khafagy R., Et al., Promising wastewater treatment using rare earth-doped nano ferrites, J Magn Magn Mater, 350, pp. 73-80, (2014)

[6]

Raghuvanshi S., Mazaleyrat F., Kane S.N., Mg1-xZnxFe2O4 nanoparticles: interplay between cation distribution and magnetic properties, AIP Adv, 8, (2018)

[7]

Ding L., Xue L., Li Z., Et al., Study of cation distributions in spinel ferrites MxMn1−xFe2O4 (M=ZnMg, Al), AIP Adv, 6, (2016)

[8]

Soka M., Usakova M., Dosoudil R., Et al., Effect of lanthanum substitution on structural and magnetic properties of nickel zinc ferrites, AIP Adv, 8, (2018)

[9]

Xing Q., Peng Z., Wang C., Et al., Doping effect of Y3+ ions on the microstructural and electromagnetic properties of Mn-Zn ferrites, Phys B, 407, pp. 388-392, (2012)

[10]

Lwin N., Fauzi M., Sreekantan S., Et al., Physical and electromagnetic properties of nanosized Gd substituted Mg-Mn ferrites by solution combustion method, Phys B, 461, pp. 134-139, (2015)

← 1 2 3 4 →