Unconventional magnetic behavior of iron-oxide nanoparticles in polymeric matrices

被引：26
|
作者：
Testa, AM [1 ]
Foglia, S
Suber, L
Fiorani, D
Casas, L
Roig, A
Molins, E
Grenèche, JM
Tejada, J
机构：
[1] CNR, ICMAT, Area Ric Roma, Monterotondo Stz, Rome, Italy
[2] UAB, CSIC, ICMAB, Bellaterra 08193, Spain
[3] Univ Maine, Fac Sci, CNRS, UMR 6087,Lab Phys Etat Condense, F-72085 Le Mans 9, France
[4] Univ Barcelona, Xerox Lab Magnet Res, E-08028 Barcelona, Spain
来源：
JOURNAL OF APPLIED PHYSICS | 2001年 / 90卷 / 03期
关键词：
D O I：
10.1063/1.1383019
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the results of magnetization and Fe-57 Mossbauer spectroscopy measurements performed in the temperature range 5-300 K on composites containing iron-oxide nanoparticles encased in polystyrene type resins. After carrying out a suitable field treatment in order to decouple the particles from the matrix, a fraction of the particles freely rotate in response to an applied magnetic field. (C) 2001 American Institute of Physics.
引用
收藏
页码：1534 / 1539
页数：6
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