Mossbauer, magnetization and X-ray diffraction characterization methods for iron oxide nanoparticles

被引：35

作者：

Gabbasov, Raul ^{[1
]}

Polikarpov, Michael ^{[1
]}

Cherepanov, Valery ^{[1
]}

Chuev, Michael ^{[2
]}

Mischenko, Iliya ^{[2
]}

Lomov, Andrey ^{[2
]}

Wang, Andrew ^{[3
]}

Panchenko, Vladislav ^{[1
]}

机构：

[1] Natl Res Ctr Kurchatov Inst, Moscow, Russia

[2] Russian Acad Sci, Inst Phys & Technol, Moscow, Russia

[3] Ocean NanoTech, Springdale, AR USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2015年 / 380卷

基金：

俄罗斯科学基金会;

关键词：

Iron oxide nanoparticles; Mossbauer spectroscopy; X-ray diffraction; Ferrimagnetism; SIZE; BIODEGRADATION; NANOCRYSTALS;

D O I：

10.1016/j.jmmm.2014.11.032

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Water soluble magnetite iron oxide nanoparticles with oleic polymer coating and average diameters in the range of 5-25 nm, previously determined by TEM, were characterized using Mossbauer, magnetization and X-ray diffraction measurements. Comparative analysis of the results demonstrated a large diversity of magnetic relaxation regimes. Analysis showed the presence of an additional impurity component in the 25 nm nanoparticles, with principally different magnetic nature at the magnetite core. In some cases, X-ray diffraction measurements were unable to estimate the size of the magnetic core and Mossbauer data were necessary for the correct interpretation of the experimental results. (C) 2014 Elsevier B.V. All rights reserved.

引用

收藏

页码：111 / 116

页数：6

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