Particle size-dependent magnetic properties of γ-Fe2O3 nanoparticles

被引：39
|
作者：
Mukadam, MD
Yusuf, SM [1 ]
Sharma, P
Kulshreshtha, SK
机构：
[1] Bhabha Atom Res Ctr, Div Solid State Phys, Bombay 400085, Maharashtra, India
[2] Bhabha Atom Res Ctr, Novel Mat & Struct Chem Div, Bombay 400085, Maharashtra, India
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
nanoparticle; superparamagnetism; magnetization measurement; coercivity; maghemite;
D O I：
10.1016/j.jmmm.2003.12.139
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of particle size on the magnetic properties of nano-crystalline powders of gamma-Fe2O3 has been studied, using a DC magnetization technique, as a function of temperature and magnetic field. A superparamagnetic-type blocking process is observed in the ZFC and FC magnetization. Coercivity increases with increasing particle size, while the saturation magnetization decreases with increasing particle size. Such anomalous behaviour can be explained in terms of the redistribution of Fe3+ ions, depending on the particle size. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：1401 / 1403
页数：3
相关论文
共 50 条
  • [41] Synthesis and magnetic properties of dendron capped Fe2O3 nanoparticles
    George, Sheby M.
    Hong, In Seok
    Kim, Jinkwon
    BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2008, 29 (08): : 1545 - 1548
  • [42] Experimental study of the structural and magnetic properties of γ-Fe2O3 nanoparticles
    Yusuf, S. M.
    De Teresa, J. M.
    Mukadam, M. D.
    Kohlbrecher, J.
    Ibarra, M. R.
    Arbiol, J.
    Sharma, P.
    Kulshreshtha, S. K.
    PHYSICAL REVIEW B, 2006, 74 (22)
  • [43] Effect of Surfactant on Magnetic and Optical Properties of α-Fe2O3 Nanoparticles
    Mirza, I. M.
    Sarfraz, A. K.
    Hasanain, S. K.
    ACTA PHYSICA POLONICA A, 2014, 126 (06) : 1280 - 1287
  • [44] Magnetic Properties of γ-Fe2O3 Nanoparticles Precipitated in Alginate Hydrogels
    Wenger, Lowell E.
    Tsoi, Georgiy M.
    Vaishnava, Prem P.
    Senaratne, Upul
    Buc, Elizabeth C.
    Naik, Ratna
    Naik, Vaman A.
    IEEE TRANSACTIONS ON MAGNETICS, 2008, 44 (11) : 2760 - 2763
  • [45] Magnetic Properties of γ - Fe2O3 Nanoparticles at the Verge of Nucleation Process
    Moscoso-Londono, O.
    Carriao, M. S.
    Cosio-Castaneda, C.
    Bilovol, V.
    Cohen, R.
    Nagamine, L. C. C. M.
    Martinez-Sanchez, R.
    Lede, E. J.
    Martinez-Garcia, R.
    Socolovsky, L. M.
    IEEE TRANSACTIONS ON MAGNETICS, 2013, 49 (08) : 4555 - 4558
  • [46] Magnetic properties of γ-Fe2O3 nanoparticles made by coprecipitation method
    Jeong, JR
    Lee, SJ
    Kim, JD
    Shin, SC
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2004, 241 (07): : 1593 - 1596
  • [47] Magnetic properties of γ-Fe2O3 nanoparticles prepared by laser ablation
    Wang Z.
    Zeng X.
    Journal Wuhan University of Technology, Materials Science Edition, 2006, 21 (04): : 28 - 31
  • [48] Influence of Protected Annealing on the Magnetic Properties of γ-Fe2O3 Nanoparticles
    Vichery, Charlotte
    Maurin, Isabelle
    Bonville, Pierre
    Boilot, Jean-Pierre
    Gacoin, Thierry
    JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (30): : 16311 - 16318
  • [49] Enhanced Magnetic Properties of Graphene Coated with Fe2O3 Nanoparticles
    Neupane, Suman
    Hong, Haiping
    Giri, Lily
    Karna, Shashi P.
    Seifu, Dereje
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2015, 15 (09) : 6690 - 6694
  • [50] Structural, EPR, optical and magnetic properties of α-Fe2O3 nanoparticles
    Jahagirdar, A. A.
    Dhananjaya, N.
    Monika, D. L.
    Kesavulu, C. R.
    Nagabhushana, H.
    Sharma, S. C.
    Nagabhushana, B. M.
    Shivakumara, C.
    Rao, J. L.
    Chakradhar, R. P. S.
    SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2013, 104 : 512 - 518
12345