Role of copper on structural, magnetic and dielectric properties of nickel ferrite nano particles

被引：27

作者：

Balavijayalakshmi, J. ^{[1
]}

Suriyanarayanan, N. ^{[2
]}

Jayaprakash, R. ^{[3
]}

机构：

[1] PSGR Krishnammal Coll Women, Dept Phys, Coimbatore 641004, Tamil Nadu, India

[2] Govt Coll Technol, Dept Phys, Coimbatore, Tamil Nadu, India

[3] Sri Ramakrishna Mission Vidyalaya Coll Arts & Sci, Dept Phys, Nanotechnol Lab, Coimbatore, Tamil Nadu, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2015年 / 385卷

关键词：

Co-precipitation; Nanoparticles; FT-IR; Coercivity; Vibrating Sample Magnetometer; Sintering; CITRATE PRECURSOR METHOD; GEL AUTO-COMBUSTION; ZN FERRITES; ZN1-XNIXFE2O4;

D O I：

10.1016/j.jmmm.2015.03.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Copper doped nickel ferrites Ni(1-x)CuxFe2O4 (where x=0.2, 0.4, 0.6) nanoparticles are prepared by coprecipitation method and sintered at 600 degrees C. The XRD study confirms the formation of single-phase cubic spinet Ni-Cu ferrites. The particle size increases with Cu substitution. FT-IR spectra confirm the absorption bands around 554-547 cm(-1) for the tetrahedral sites and around 448-450 cm(-1) for the octahedral sites. The inclusion of copper shifts the tetrahedral band to lower values. The saturation magnetization (M-s) and remanent magnetization (M-r) decrease with increase in copper concentration and the coercivity (H-c) is found to increase for all the compositions sintered at 600 degrees C. The dielectric constant decreases drastically for all the compositions and reaches a constant value. These nanoparticles can be tested for humidity sensing applications. (C) 2015 Elsevier B.V. All rights reserved

引用

页码：302 / 307

页数：6

共 19 条

[1] Laser induced structural and transport properties change in Cu-Zn ferrites [J].

Ahmed, M. A. ;

Khalil, A. A. I. ;

Solyman, S. .

JOURNAL OF MATERIALS SCIENCE, 2007, 42 (11) :4098-4109

[2] Influence of yttrium ions on the magnetic properties of Ni-Zn ferrites [J].

Ahmed, MA ;

Okasha, N ;

Salah, L .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 264 (2-3) :241-250

[3] Structural, dielectric and magnetic properties of NiCuZn ferrite grown by citrate precursor method [J].

Dimri, Mukesh C. ;

Verma, A. ;

Kashyap, Subhash C. ;

Dube, D. C. ;

Thakur, O. P. ;

Prakash, Chandra .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 133 (1-3) :42-48

[4] Structural and magnetic properties of nanocrystalline Ni1-xCuxFe2O4 prepared through oxalates precursors [J].

Gabal, M. A. ;

Al Angari, Y. M. ;

Kadi, M. W. .

POLYHEDRON, 2011, 30 (06) :1185-1190

[5] Effect of Mg substitution on the magnetic properties of NiCuZn ferrite nanoparticles prepared through a novel method using egg white [J].

Gabal, M. A. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2009, 321 (19) :3144-3148

[6] Colossal magnetoresistance in spinel type Zn1-xNixFe2O4 [J].

Hossain, AKMA ;

Seki, M ;

Kawai, T ;

Tabata, H .

JOURNAL OF APPLIED PHYSICS, 2004, 96 (02) :1273-1275

[7]

IWACHI K, 1986, PHYS STATUS SOLIDI A, V93, P309

[8] Structural, electrical and magnetic characterizations of Ni-Cu-Zn ferrite synthesized by citrate precursor method [J].

Jadhav, P. A. ;

Devan, R. S. ;

Kolekar, Y. D. ;

Chougule, B. K. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2009, 70 (02) :396-400

[9] ON THE DISPERSION OF RESISTIVITY AND DIELECTRIC CONSTANT OF SOME SEMICONDUCTORS AT AUDIOFREQUENCIES [J].

KOOPS, CG .

PHYSICAL REVIEW, 1951, 83 (01) :121-124

[10] Characterization of Mn0.8Zn0.2Fe2O4 synthesized by flash combustion technique [J].

Mangalaraja, RV ;

Ananthakmar, S ;

Manohar, P ;

Gnanam, FD ;

Awano, M .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 367 (1-2) :301-305

← 1 2 →