Unusual features of ferromagnetic/antiferromagnetic nanocomposites

被引：22
作者：
Azab, A. A. [1 ]
El-Dek, S. I. [2 ]
Solyman, S. [3 ,4 ]
机构：
[1] Natl Res Ctr, Div Phys, Dept Solid State Phys, Solid State Elect Lab, Giza, Egypt
[2] Beni Suef Univ PSAS, Fac Post Grad Studies Adv Sci, Mat Sci & Nanotechnol Deptartment, Bani Suwayf, Egypt
[3] Zagazig Univ, Fac Sci, Dept Phys, Zagazig, Egypt
[4] Bisha Univ, Fac Sci & Arts Girls Al Namas, Dept Phys, Bisha, Saudi Arabia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 656卷
关键词：
Nanocomposites; FM/AFM exchange bias; TEM; Magnetic properties; Dielectric properties; EXCHANGE BIAS; MAGNETIC-PROPERTIES; GIANT MAGNETORESISTANCE;
D O I：
10.1016/j.jallcom.2015.10.048
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Nanocomposites based on the general formula ((1-x) CFO + (x) LCFO) were successfully synthesized using citrate-nitrate autocombustion technique. Properties of the nanocomposites were characterized by X-ray diffraction and transmission electron microscope. Magnetic properties revealed a colossal compositional change in the coercivity for the nanocomposites despite its small value for the two parents. The saturation magnetization and remanence magnetization were found to decrease linearly with the antiferromagnetic phase (AFM) content rose. The dielectric constant was found to increase with increasing (AFM) content. Potential applications of the nanocomposites in magnetic random access memories (MRAMS) and spintronics are recommended. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：987 / 991
页数：5
相关论文
共 24 条
[1]   Influence of manganese substitution on structural and magnetic properties of CoFe2O4 nanoparticles [J].
Adeela, N. ;
Maaz, K. ;
Khan, U. ;
Karim, S. ;
Nisar, A. ;
Ahmad, M. ;
Ali, G. ;
Han, X. F. ;
Duan, J. L. ;
Liu, J. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 639 :533-540
[2]   Fascinating properties of multifunctional nanocomposites manganite/magnetite [J].
Ahmed, M. A. ;
El-Dek, S. I. ;
Abd Elazim, A. .
SUPERLATTICES AND MICROSTRUCTURES, 2014, 74 :34-51
[3]   Novel structural and magnetic properties of Mg doped copper nanoferrites prepared by conventional and wet methods [J].
Ahmed, M. A. ;
Afify, H. H. ;
El Zawawia, I. K. ;
Azab, A. A. .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (14) :2199-2204
[4]   Influence of Co content on the characterization and magnetic properties of magnetite [J].
Ahmed, M. A. ;
Okasha, N. ;
El-Dek, S. I. .
CERAMICS INTERNATIONAL, 2010, 36 (05) :1529-1533
[5]   Extraordinary role of Ca2+ ions on the magnetization of LaFeO3 orthoferrite [J].
Ahmed, MA ;
El-Dek, SI .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2006, 128 (1-3) :30-33
[6]   Structural and magnetic properties of La1-xCexFe1-xCrxO3 orthoferrite prepared by co-precipitation method [J].
Azab, A. A. ;
Helmy, N. ;
Albaaj, Sukrat .
MATERIALS RESEARCH BULLETIN, 2015, 66 :249-253
[7]   GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].
BAIBICH, MN ;
BROTO, JM ;
FERT, A ;
VANDAU, FN ;
PETROFF, F ;
EITENNE, P ;
CREUZET, G ;
FRIEDERICH, A ;
CHAZELAS, J .
PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475
[8]   GIANT MAGNETORESISTANCE IN SOFT FERROMAGNETIC MULTILAYERS [J].
DIENY, B ;
SPERIOSU, VS ;
PARKIN, SSP ;
GURNEY, BA ;
WILHOIT, DR ;
MAURI, D .
PHYSICAL REVIEW B, 1991, 43 (01) :1297-1300
[9]   Exchange bias effect in polycrystalline NiO/NiMn2O4 composite [J].
Freitas Cabral, A. J. ;
Pena Serna, J. ;
Rache Salles, B. ;
Novak, M. A. ;
Pinto, A. L. ;
Rocha Remedios, C. M. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 630 :74-77
[10]  
GLAZER AA, 1972, JETP LETT-USSR, V15, P259
123