Synthesis and magnetic properties of MCr2O4(M = Co, Zn) nanocrystalline

被引:0
|
作者
Institute of Physical Chemistry, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China [1 ]
不详 [2 ]
机构
来源
Zhongguo Youse Jinshu Xuebao | 2006年 / 10卷 / 1761-1764期
关键词
Coercive force - Hysteresis - Magnetic properties - Magnetism - Magnetization - Microstructure - Nanostructured materials - Surface structure - Synthesis (chemical);
D O I
暂无
中图分类号
学科分类号
摘要
MCr2O4(M = Co, Zn) nanocrystalline were synthesized by the thermolysis of complexes. Their phase, surface microstructure and magnetic properties were characterized. The results indicate that the products have a spinel structure with cubic system, and are spheric particles with crystallite size of about 40 nm. The hysteresis loops show that CoCr2O4 has a clear ferrmagnetism and an exchange bias filed at lower temperature. It is observed that the coercivity, exchange bias filed, saturation and remanence magnetization are 6.05 × 10s A/m, 1.93 × 104 A/m, 19.86 A&middotm2/kg and 12.63 A&middotm2/kg, respectively, which are explained by the magnetic spin disorder of surface atoms resulted from surface structure defects of CoCr2O4 nanocrystalline.
引用
收藏
相关论文
共 50 条
  • [31] Effect of Zn substitution on the structural and magnetic properties of nanocrystalline NiFe2O4 ferrites
    Anupama, M. K.
    Srinatha, N.
    Matteppanavar, Shidaling
    Angadi, Basavaraj
    Sahoo, Balaram
    Rudraswamy, B.
    CERAMICS INTERNATIONAL, 2018, 44 (05) : 4946 - 4954
  • [32] MECHANOCHEMICAL SYNTHESIS OF NANOCRYSTALLINE (Fe,Co)3O4-BASED ALLOYS AND THEIR MAGNETIC PROPERTIES
    Menushenkov, Vladimir
    Yagodkin, Yurii
    Shandrovskaiy, Ekaterina
    SOLID COMPOUNDS OF TRANSITION ELEMENTS, 2011, 170 : 97 - 101
  • [33] Synthesis and properties of willemite Zn2SiO4, and M2+:Zn2SiO4 (M = Co and Ni)
    Chandrappa, GT
    Ghosh, S
    Patil, KC
    JOURNAL OF MATERIALS SYNTHESIS AND PROCESSING, 1999, 7 (05) : 273 - 279
  • [34] Single Step Synthesis and Properties of M/MFe2O4 and PVDF/M/MFe2O4 (M = Co, Ni) Magnetic Nanocomposites
    Deka, Sasanka
    Joy, P. A.
    Kumar, A. Pratheep
    SCIENCE OF ADVANCED MATERIALS, 2009, 1 (03) : 262 - 268
  • [35] Microstructure and magnetic properties of nanocrystalline Co1-xZnxFe2O4 ferrites
    Liu, Yin
    Zhu, Xiao-guang
    Zhang, Lei
    Min, Fan-fei
    Zhang, Ming-xu
    MATERIALS RESEARCH BULLETIN, 2012, 47 (12) : 4174 - 4180
  • [36] Size dependent magnetic phase of nanocrystalline Co0.2Zn0.8Fe2O4
    Dey, S
    Roy, A
    Ghose, J
    Bhowmik, RN
    Ranganathan, R
    JOURNAL OF APPLIED PHYSICS, 2001, 90 (08) : 4138 - 4142
  • [37] Size dependent magnetic phase of nanocrystalline Co0.2Zn0.8Fe2O4
    1600, American Institute of Physics Inc. (90):
  • [38] Field-induced metamagnetic transitions in S=3/2 Heisenberg antiferromagnets MCr2O4
    Ueda, H
    Mitamura, H
    Goto, T
    Ueda, Y
    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2005, (159): : 256 - 259
  • [39] SYNTHESIS, STRUCTURAL, MAGNETIC AND PHOTOCATALYTIC PROPERTIES OF MFe2O4 (M = Co, Mn, Zn) FERRITE NANOPARTICLES OBTAINED BY PLASMACHEMICAL METHOD
    Frolova, Liliya A.
    Hrydnieva, Tatyana, V
    JOURNAL OF CHEMISTRY AND TECHNOLOGIES, 2020, 28 (02): : 202 - 210
  • [40] Thermodynamic Analysis and Crystallographic Properties of MFe2O4, MCr2O4 and MAl2O4 (M = Fe, Ni, Zn) Formed on Structural Materials in Pressurized Water Reactor Primary Circuit under Zinc and Zinc-aluminum Water Chemistry
    Jiao, Yang
    Zhang, Shenghan
    Tan, Yu
    ENTROPY, 2022, 24 (02)