Microstructure and magnetism of Fe nanoparticles embedded in Al2O3-ZnO matrix

被引：7
作者：
Santini, O [1 ]
Mosca, DH
Schreiner, WH
Marangoni, R
Guimaraes, JL
Wypych, F
de Oliveira, AJA
机构：
[1] UFPR, Dept Fis, BR-81531900 Curitiba, Parana, Brazil
[2] UFPR, Dept Quim, BR-81531900 Curitiba, Parana, Brazil
[3] UFSCar, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2003年 / 36卷 / 05期
关键词：
D O I：
10.1088/0022-3727/36/5/303
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nanoscaled Fe particles embedded in a double-oxide matrix were obtained by synthesizing a zinc-aluminium layered double hydroxide intercalated with a hexacyano Fe(III) complex under vacuum thermal annealing. Chemical and structural properties were investigated by Fourier transform infrared spectroscopy, x-ray photoemission spectroscopy, x-ray diffraction and transmission electron microscopy. The magnetic properties of the Fe nanoparticles were investigated using a SQUID magnetometer. Our measurements indicate a system of weakly interacting magnetic nanoparticles that are arranged in a multidomain state at low temperature.
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页码：428 / 433
页数：6
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