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

页码：1485 / 1486

页数：2

共 5 条

[1] X-ray diffraction and Mossbauer spectroscopy of the core/shell iron/iron oxide system [J].