Surface waves and Rosensweig instability in isotropic ferrogels

被引：12

作者：

Bohlius, S

Brand, HR

Pleiner, H

机构：

[1] Max Planck Inst Polymer Res, D-55021 Mainz, Germany

[2] Univ Bayreuth, D-95440 Bayreuth, Germany

来源：

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 2006年 / 220卷 / 01期

关键词：

magnetic gels; surface waves; dispersion relation; Rosensweig instability;

D O I：

10.1524/zpch.2006.220.1.97

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We derive the dispersion relation of surface waves for isotropic magnetic gels in the presence of an external magnetic field normal to the free surface. Above a critical field strength surface waves become linearly unstable with respect to a stationary pattern of surface protuberances. This linear stability criterion generalizes that of the Rosensweig instability for ferrofluids by taking into account elasticity, additionally.

引用

页码：97 / 104

页数：8

共 8 条

[1]

Bohlius S, 2004, PHYS REV E, V70, DOI 10.1103/PhysRevE.70.061411

[2]

BOHLIUS S, 2005, THESIS U BAYREUTH

[3] Frozen-in magnetic order in uniaxial magnetic gels: Preparation and physical properties [J].