Core-shell iron-iron oxide nanoparticles: magnetic properties and interactions

被引：29
|
作者：
Kuhn, LT
Bojesen, A
Timmermann, L
Fauth, K
Goering, E
Johnson, E
Nielsen, MM
Morup, S
机构：
[1] Mat Res Dept, Riso Natl Lab, DK-4000 Roskilde, Denmark
[2] Niels Bohr Inst fAPG, Orsted Lab, DK-2100 Copenhagen, Denmark
[3] Univ Wurzburg, Inst Expt Phys 4, D-97074 Wurzburg, Germany
[4] Riso Natl Lab, Danish Polymer Ctr, DK-4000 Roskilde, Denmark
[5] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
magnetic nanoparticle; core-shell; Mossbauer spectroscopy; X-ray absorption spectroscopy;
D O I：
10.1016/j.jmmm.2003.12.189
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present studies of the magnetic properties of core-shell iron-iron oxide nanoparticles. By combining Mossbauer and X-ray absorption spectroscopy we have been able to measure the change from a Fe3O4-like to a gamma-Fe2O3-like composition from the interface to the surface. Furthermore, we have observed exchange interactions across the core-shell interface. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：1485 / 1486
页数：2
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