Physical and magnetic characterization of co-precipitated nanosize Co-Ni ferrites

被引：109

作者：

Gul, I. H.

Amin, F.

Abbasi, A. Z.

Anis-ur-Rehmanb, M.

Maqsood, A. ^{[1
]}

机构：

[1] Quaid I Azam Univ, Dept Phys, Thermal Phys Lab, Islamabad 45320, Pakistan

[2] COMSATS Inst Informat Technol, Dept Phys, Islamabad, Pakistan

来源：

SCRIPTA MATERIALIA | 2007年 / 56卷 / 06期

关键词：

AC magnetic susceptibility; DC electrical resistivity; dielectric constant; nanoparticles; X-ray diffraction;

D O I：

10.1016/j.scriptamat.2006.11.020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Structural parameters along with magnetic and electrical behaviour of nanosize Co-Ni spinel ferrites synthesized by co-precipitation method are reported. The crystallite size was found to be within the range of 14-21 nm. The Curie temperature increases with Ni concentration. The activation energy and drift mobility are determined from the DC electrical resistivity measurements. The dielectric constants and loss factors as a function of frequency are also reported. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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页码：497 / 500

页数：4

相关论文

共 23 条

[11] 2-PHASE POLARON MODEL OF CONDUCTION IN MAGNETITE-LIKE SOLIDS [J].

KLINGER, MI .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1975, 8 (21) :3595-3607

[12] Cation occupancy sites in synthetic Co-doped magnetites as determined with X-ray absorption (XAS) and Mossbauer spectroscopies [J].

Lelis, MFF ;

Porto, AO ;

Gonçalves, CM ;

Fabris, JD .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 278 (1-2) :263-269

[13]

MAXWELL JC, 1929, ELECT MAGNETISM, V1

[14] Assemblies of ferrite nanocrystals: Partial orientation of the easy magnetic axes [J].

Ngo, AT ;

Pileni, MP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (01) :53-58

[15] ADVANCES IN FERROFLUID TECHNOLOGY [J].

RAJ, K ;

MOSKOWITZ, B ;

CASCIARI, R .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 149 (1-2) :174-180

[16] PARTICULATE MAGNETIC RECORDING MEDIA - A REVIEW [J].

SHARROCK, MP .

IEEE TRANSACTIONS ON MAGNETICS, 1989, 25 (06) :4374-4389

[17] Preparation and characterization of nanosize nickel-substituted cobalt ferrites (Co1-xNixFe2O4) [J].

Singhal, S ;

Singh, J ;

Barthwal, SK ;

Chandra, K .

JOURNAL OF SOLID STATE CHEMISTRY, 2005, 178 (10) :3183-3189

[18] Dielectric properties and electrical conduction in yttrium iron garnet (YIG) [J].

Sirdeshmukh, L ;

Kumar, KK ;

Laxman, SB ;

Krishna, AR ;

Sathaiah, G .

BULLETIN OF MATERIALS SCIENCE, 1998, 21 (03) :219-226

[19] New electric double-layered magnetic fluids based on copper, nickel, and zinc ferrite nanostructures [J].

Sousa, MH ;

Tonrinho, FA ;

Depeyrot, J ;

da Silva, GJ ;

Lara, MCFL .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (06) :1168-1175

[20] Cation migration and coercivity in mixed copper-cobalt spinel ferrite powders [J].

Tailhades, P ;

Villette, C ;

Rousset, A ;

Kulkarni, GU ;

Kannan, KR ;

Rao, CNR ;

Lenglet, M .

JOURNAL OF SOLID STATE CHEMISTRY, 1998, 141 (01) :56-63