Stability of citrate-coated magnetite and cobalt-ferrite nanoparticles under laser irradiation: A Raman spectroscopy investigation

被引：64

作者：

da Silva, SW ^{[1
]}

Melo, TFO

Soler, MAG

Lima, ECD

da Silva, AF

Morais, PC

机构：

[1] Univ Brasilia, Inst Fis, BR-70919970 Brasilia, DF, Brazil

[2] Univ Fed Goias, Inst Quim, BR-74001970 Goiania, Go, Brazil

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2003年 / 39卷 / 05期

关键词：

ferrite; magnetic fluid; nanoparticle; Raman spectroscopy;

D O I：

10.1109/TMAG.2003.815540

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, Raman spectroscopy was used to investigate the chemical and structural properties of citrate-coated Fe3O4 and CoFe2O4 nanoparticles. The Raman data obtained from the two samples investigated are compared with the Raman data from the literature of bulk maghemite and bulk hematite. The Raman data are used to discuss the higher structural stability of the CoFe2O4-based sample in comparison to the Fe3O4-based sample, when submitted to optical illumination at different intensities.

引用

页码：2645 / 2647

页数：3

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