Quasi-elastic neutron scattering on gamma-Fe2O3 nanoparticles

被引：82

作者：

Gazeau, F

Dubois, E

Hennion, M

Perzynski, R

Raikher, Y

机构：

[1] UNIV PARIS 06,LAB PHYS CHIM INORGAN,F-75252 PARIS 05,FRANCE

[2] CEN,LAB LEON BRILLOUIN,GIF SUR YVETTE,FRANCE

[3] RUSSIAN ACAD SCI,URALS BRANCH,LAB KINET ANISOTROP FLUIDS,PERM 614061,RUSSIA

来源：

EUROPHYSICS LETTERS | 1997年 / 40卷 / 05期

关键词：

D O I：

10.1209/epl/i1997-00507-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetodynamics of ferrofluid gamma-Fe2O3 nanoparticles is studied by Quasi-Elastic Neutron Scattering between 10 K and 250 K in the frequency range 10(10)-10(12) Hz. We probe independently the precession of the core magnetic moment and surface spins fluctuations observed in a dissipative regime. These fluctuations slow down at low temperature leading to a frozen disorder of the surface layer.

引用

页码：575 / 580

页数：6

共 17 条

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