NSE-study of magnetic phase dynamics in poly(vinylalcohol) ferrogel

被引：15

作者：

Török, G

Lebedev, VT

Cser, L

Zrinyi, M

机构：

[1] Solid State Phys Res Inst, H-1525 Budapest, Hungary

[2] Petersburg Nucl Phys Inst, Gatchina 188350, St Petersburg D, Russia

[3] Tech Univ Budapest, H-1521 Budapest, Hungary

来源：

PHYSICA B | 2000年 / 276卷

关键词：

magnetic colloid; dynamics;

D O I：

10.1016/S0921-4526(99)01593-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

New magnetic field-sensitive hydrogels have been synthesized using cross-linked poly(vinylalcohol) with attached subdomain particles of Fe3O4 (size similar to 100 Angstrom), The SANS experiments in held (B similar to 3 kG) have shown binding to the network of particles. No translational diffusion of Fe3O4 particles was observed. In ferrogel dynamics the stretched oscillating modes (frequency similar to 10(8) Hz) arising from fast Neel's fluctuations of particles magnetic moments dominate (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：396 / 397

页数：2