Unusual increase in permeability in cobalt substituted Ni-Zn-Mg ferrites

被引：19

作者：

Gangaswamy, D. R. S. ^{[1
]}

Bharadwaj, S. ^{[2
]}

Varma, M. Chaitanya ^{[2
]}

Choudary, G. S. V. R. K. ^{[3
]}

Rao, K. H. ^{[4
]}

机构：

[1] Govt Polytech, Dept Phys, Amudalavalasa 532185, Andhra Prades, India

[2] Gitam Deemed Be Univ, Inst Technol, Dept Phys, Visakhapatnam 530045, Andhra Prades, India

[3] Bhavans Vivekananda Coll, Dept Phys, Secunderabad 500094, Andra Prades, India

[4] RGU IIIT Nuzvid, Nuzividu 521201, Andhra Prades, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 468卷

关键词：

Ferrite; Permeability; Saturation magnetization; Lattice parameter; MAGNETIC-ANISOTROPY; NICKEL; NANOPARTICLES; CONSTANT;

D O I：

10.1016/j.jmmm.2018.07.075

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A constant rise in magnetic permeability with a simultaneous decrease in saturation magnetization, and Curie temperature has been recorded throughout the cobalt concentration studied in Ni-Zn ferrite system of composition, Ni0.57-yCoyZn0.35Mg0.08Fe2O4 (x = 0.00, 0.04, 0.08, 0.12, 0.16, 0.20). The observed increase in magnetic permeability with cobalt addition has been an unusual phenomenon in nickel zinc ferrites. The anomalous increase along with allied magnetic properties has been discussed in terms of the super exchange interactions between the cations occupying tetrahedral and octahedral sites and their distribution by studying lattice parameter, grain size and differential magnetic susceptibility.

引用

页码：73 / 78

页数：6

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