Synthesis and Magnetic Properties of Hard-Soft SrFe10Al2O19/NiZnFe2O4 Ferrite Nanocomposites

被引：51
作者：
Rai, B. K. [1 ]
Wang, L. [1 ]
Mishra, S. R. [1 ]
Nguyen, V. V. [2 ]
Liu, J. P. [2 ]
机构：
[1] Univ Memphis, Dept Phys, Memphis, TN 38152 USA
[2] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2014年 / 14卷 / 07期
基金：
美国国家科学基金会;
关键词：
Hard-Soft Magnetic Nanocomposite; Exchange-Coupled; Ferrites; Atuocumbustion; EXCHANGE-COUPLING INTERACTION; EFFECTIVE ANISOTROPY; COMPOSITES; ROUTE; HYSTERESIS; ND; NI; SM;
D O I：
10.1166/jnn.2014.8836
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Pure phase exchange-coupled nanocomposites of hard-soft magnetic oxides, (hard) SrFe10Al2O19-(soft) Ni0.75Zn0.25Fe2O4 were prepared via autocombution method. Magnetic properties of the nanocomposites were assessed as a function of soft-phase content in the nanocomposite. A 40% increase in M-s value was observed for nanocomposite with 30 Wt.% of the soft phase. A linear increase in M-r/M-s with soft-phase content indicates the presence of enhanced exchange-coupling between hard and soft phases of the nanocomposite. The highest M-r/M-s ratio of 0.68 was obtained for nanocomposite containing 30 Wt.% of the soft-phase. The observed reduction in coercieve field values of the nanocomposite with increase in soft-phase content is explained on the basis of competition between exchange and dipolar interaction between hard-soft and soft-soft phases of the nanocomposite.
引用
收藏
页码：5272 / 5277
页数：6
相关论文
共 34 条
[1]   Influence of stoichiometry and calcination condition on the microstructure and phase constitution of NiFe2O4 powders prepared by sol-gel autocombustion method [J].
Azadmanjiri, J ;
Ebrahimi, SAS .
SECOND SEEHEIM CONFERENCE ON MAGNETISM, PROCEEDINGS, 2004, :3414-3417
[2]   In-situ high-temperature X-ray diffraction studies of non-stoichiometric Ni-Zr substituted barium hexagonal ferrites prepared by citrate precursor route [J].
Bahadur, D ;
Fischer, W ;
Rane, MV .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 252 (01) :109-116
[3]   NEW MAGNETS FROM INTERSTITIAL INTERMETALLICS [J].
COEY, JMD ;
SKOMSKI, R .
PHYSICA SCRIPTA, 1993, T49A :315-321
[4]  
Cullity B.D., 1978, Elements of X-Ray Diffraction, V2nd, P100, DOI [10.1119/1.1934486, DOI 10.1119/1.1934486]
[5]   REMANENCE ENHANCEMENT IN MECHANICALLY ALLOYED ISOTROPIC SM7FE93-NITRIDE [J].
DING, J ;
MCCORMICK, PG ;
STREET, R .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 124 (1-2) :1-4
[6]   Effect of exchange and dipolar interactions on the hysteresis of magnetic nanoparticle systems [J].
Du, H. F. ;
Du, A. .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2007, 244 (04) :1401-1408
[7]   Topological evolution during coupled grain growth and Ostwald ripening in volume-conserved 2-D two-phase polycrystals [J].
Fan, D ;
Chen, LQ .
ACTA MATERIALIA, 1997, 45 (10) :4145-4154
[8]   Synthesis and magnetic properties of hard magnetic (CoFe2O4)-soft magnetic (Fe3O4) nano-composite ceramics by SPS technology [J].
Fei, Chunlong ;
Zhang, Yue ;
Yang, Zhi ;
Liu, Yong ;
Xiong, Rui ;
Shi, Jing ;
Ruan, Xuefeng .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2011, 323 (13) :1811-1816
[9]   Effective anisotropy between magnetically soft and hard grains in nanocomposite magnets [J].
Han, GB ;
Gao, RW ;
Fu, S ;
Feng, WC ;
Liu, HQ ;
Chen, W ;
Li, W ;
Guo, YQ .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 81 (03) :579-582
[10]   A Novel But Simple "One-Pot" Synthetic Route for Preparation of (NiFe2O4)x-(BaFe12O19)1-x Composites [J].
Hazra, Subhenjit ;
Patra, Manoj Kumar ;
Vadera, Sampat Raj ;
Ghosh, Narendra Nath .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2012, 95 (01) :60-63
1234