Synthesis and characterization of CoFe2O4 nanoparticles with high coercivity

被引：67

作者：

Gandha, Kinjal ^{[1
]}

Elkins, Kevin ^{[1
]}

Poudyal, Narayan ^{[1
]}

Liu, J. Ping ^{[1
]}

机构：

[1] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 17期

关键词：

COBALT-FERRITE NANOPARTICLES; MAGNETIC-PROPERTIES; RAMAN-SPECTROSCOPY; NANOCRYSTALS; NANOWIRES; STABILITY; FE;

D O I：

10.1063/1.4916544

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Single crystalline CoFe2O4 nanoparticles with high coercivity were prepared via a one-step hydrothermal method. The shape and size of the nanocrystals (in the range of 20-100 nm) can be controlled by varying synthesis parameters such as the concentration of NaOH and CTAB. X-ray diffraction and Raman spectra analysis confirmed that all the as-synthesized nanoparticles have a face centered cubic spinel crystal structure. HRTEM observation of particles shows interlayer spacing 0.48 nm of (111) lattice planes. A coercive force up to 5.0 kOe and saturation magnetization of 73 emu/g was achieved at room temperature for the 40 nm CoFe2O4 nanoparticles. (C) 2015 AIP Publishing LLC.

引用

页数：4

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