Microstructures, Electrical and Magnetic Properties of Zn Doped Co Nanoferrites

被引：1

作者：

Akram, M. ^{[1
]}

Anis-ur-Rehman, M. ^{[1
]}

Mubeen, M. ^{[1
]}

Ali, M. ^{[1
]}

机构：

[1] COMSATS Inst Informat Technol, Dept Phys, Appl Thermal Phys Lab, Islamabad, Pakistan

来源：

ADVANCED MATERIALS XII | 2012年 / 510-511卷

关键词：

Co precipitation; Co-Zn nanoferrites; Structural properties; Electrical properties; Magnetic properties; DIELECTRIC-PROPERTIES; NANOPARTICLES; FERRITES; BEHAVIOR; NIFE2O4;

D O I：

10.4028/www.scientific.net/KEM.510-511.221

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Non toxicity, bio compatibility and nanometer sizes regime which is comparable to the size of a cell, makes nanocrystalline Co ferrites particles very proficient. In the present research Zn doped cobalt ferrites were prepared by the chemical co-precipitation method and characterized by X-ray diffraction (XRD) at room temperature for structural analysis. X-ray diffraction patterns confirmed the FCC spinel structure of synthesized particles. Crystallite sizes were calculated from the most intense peak (311) using the Debye-Scherrer formula. The obtained crystallite sizes were in nanometer range for all the samples synthesized at reaction temperature of 70 degrees C. Then samples were sintered at 550 degrees C for 2 hours, characterized again by X-ray diffraction at room temperature. The crystallite sizes and lattice constants for all the samples were calculated again from the data obtained by XRD. DC electrical resistivity and AC electrical transport properties were analyzed. The magnetic properties such as coercivity (H-c) and remanence (M-r) of Co1-xZnxFe2O4 for x = 0.0, 0.2, 0.4 were measured at room temperature by vibrating sample magnetometer. Coercivity and remanence were found maximum with minimum value of Zn in Co1-xZnxFe2O4. Observed structural and conduction properties of synthesized nanomaterials were correlated.

引用

页码：221 / 226

页数：6

共 21 条

[1]

[Anonymous], [No title captured]

[2] Co-Zn ferrite nanoparticles for ferrofluid preparation: Study on magnetic properties [J].

Arulmurugan, R ;

Vaidyanathan, G ;

Sendhilnathan, S ;

Jeyadevan, B .

PHYSICA B-CONDENSED MATTER, 2005, 363 (1-4) :225-231

[3]

Baraton M.I., 2003, SYNTHESIS FICTIONALI

[4] Structural and electrical properties of zinc-substituted cobalt ferrite [J].

Bayoumi, Wafaa .

JOURNAL OF MATERIALS SCIENCE, 2007, 42 (19) :8254-8261

[5] A Structural and Magnetic Investigation of the Inversion Degree in Ferrite Nanocrystals MFe2O4 (M = Mn, Co, Ni) [J].

Carta, D. ;

Casula, M. F. ;

Falqui, A. ;

Loche, D. ;

Mountjoy, G. ;

Sangregorio, C. ;

Corrias, A. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (20) :8606-8615

[6] Synthesis, characterisation and magnetic studies on nanocrystalline Co0.2Zn0.8Fe2O4 [J].

Dey, S ;

Ghose, J .

MATERIALS RESEARCH BULLETIN, 2003, 38 (11-12) :1653-1660

[7] Effect of light on the magnetic properties of cobalt ferrite nanoparticles [J].

Giri, AK ;

Pellerin, K ;

Pongsaksawad, W ;

Sorescu, M ;

Majetich, SA .

IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (05) :3029-3031

[8] Structural, magnetic and electrical properties of Co1-xZnxFe2O4 synthesized by co-precipitation method [J].

Gul, I. H. ;

Abbasi, A. Z. ;

Amin, F. ;

Anis-ur-Rehman, M. ;

Maqsood, A. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 311 (02) :494-499

[9] Crystal structure and the effect of annealing atmosphere on the dielectric properties of the spinels MgAl2O4, NiFe2O4, and NiAlFeO4 [J].

Kim, Jeong Seog ;

Lee, Kyoung Ho ;

Cheon, Chae Il .

JOURNAL OF ELECTROCERAMICS, 2009, 22 (1-3) :233-237

[10] Synthesis and characterization of CoFe2O4 magnetic nanoparticles prepared by temperature-controlled coprecipitation method [J].

Kim, YI ;

Kim, D ;

Lee, CS .

PHYSICA B-CONDENSED MATTER, 2003, 337 (1-4) :42-51

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