Phase evaluation of Li+ substituted CoFe2O4 nanoparticles, their characterizations and magnetic properties

被引：43

作者：

Kadam, R. H. ^{[1
]}

Alone, Suresh T. ^{[2
]}

Mane, Maheshkumar L. ^{[3
]}

Biradar, A. R. ^{[1
]}

Shirsath, Sagar E. ^{[4
]}

机构：

[1] Shrikrishna Mahavidyalaya Gunjoti, Mat Sci Res Lab, Osmanabad, Maharashtra, India

[2] RS Arts Sci & Commerce Coll, Dept Phys, Aurangabad, Maharashtra, India

[3] Rajarshi Shahu Mahavidyalaya, Dept Phys, Latur, Maharashtra, India

[4] Shinshu Univ, Dept Informat Engn, Spin Device Technol Ctr, Nagano 3808553, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2014年 / 355卷

关键词：

Ferrites; XRD; TEM; Magnetization; Infrared spectroscopy; Electrical characterization; FERRITE NANOPARTICLES; ELECTRICAL-PROPERTIES; LITHIUM FERRITES;

D O I：

10.1016/j.jmmm.2013.11.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Li+ substituted CoFe2O4 with the chemical formula Li3xCoFe2-xO4 were synthesized by sol-gel auto combustion method. The synthesized samples were annealed at 600 degrees C for 4 h. X-ray diffraction data were used to evaluate the structure of the prepared samples. Spinet ferrite phase or CoFe2O4 changes to ordered like lithium ferrite phase with increase in L1+ substitution. Lattice constant increases whereas particle size found to decrease with Li+ substitution. Infrared spectroscopy also confirmed the phase transition of CoFe2O4 after the incorporation of lithium ions. Substitution of Li+ ions for Fe3+ caused a decrease in the saturation magnetization from 69.59 emufg to 47.71 emufg and the coercivity increased from 647 Oe to 802 Oe. Resistivity and dielectric properties shows inverse relation to each other. (C) 2013 Elsevier B.V. All rights reserved

引用

页码：70 / 75

页数：6

共 21 条

[1] Dielectric properties of Cu substituted Ni0.5-xZn0.3Mg0.2Fe2O4 ferrites [J].

Bhandare, M. R. ;

Jamadar, H. V. ;

Pathan, A. T. ;

Chougule, B. K. ;

Shaikh, A. M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (06) :L113-L118

[2]

Coey J.M.D., 1996, Rare Earth Permanent Magnetism, V1st

[3]

Cullity B.D., 1956, Elements of X- ray Diffraction, P99

[4] Electromagnetic properties of manganese-zinc ferrite with lithium substitution [J].

De Fazio, E. ;

Bercoff, P. G. ;

Jacobo, S. E. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2011, 323 (22) :2813-2817

[5] STUDY BY MOSSBAUER SPECTROMETRY OF SUBSTITUTED LITHIUM FERRITES - EFFECT OF SUPERTRANSFERRED HYPERFINE FIELDS AND RELAXATION [J].

DORMANN, JL .

REVUE DE PHYSIQUE APPLIQUEE, 1980, 15 (06) :1113-1121

[6] 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

[7] Zn0.6Cu0.4Cr0.5Fe1.46Sm0.04O4 ferrite and its nanocomposites with polyaniline and polypyrrole: Preparation and electromagnetic properties [J].

Li, Liangchao ;

Xiang, Chen ;

Liang, Xiaoxi ;

Hao, Bin .

SYNTHETIC METALS, 2010, 160 (1-2) :28-34

[8] Sol-gel synthesis of Cr3+ substituted Li0.5Fe2.5O4: Cation distribution, structural and magnetic properties [J].

Mane, D. R. ;

Patil, Swati ;

Birajdar, D. D. ;

Kadam, A. B. ;

Shirsath, Sagar E. ;

Kadam, R. H. .

MATERIALS CHEMISTRY AND PHYSICS, 2011, 126 (03) :755-760

[9] X-RAY-ANALYSIS AND IR-ABSORPTION-SPECTRA OF LI-GE FERRITE [J].

MAZEN, SA ;

ABDALLAH, MH ;

NAKHLA, RI ;

ZAKI, HM ;

METAWE, F .

MATERIALS CHEMISTRY AND PHYSICS, 1993, 34 (01) :35-40

[10]

NEEL L, 1948, ANN PHYS-PARIS, V3, P137

← 1 2 3 →