Rupture and healing of one-dimensional chains in a parametric magnetic ratchet potential

被引：23

作者：

Tierno, Pietro

Reddy, Sathavaram V.

Johansen, Tom H.

Fischer, Thomas M. ^{[1
]}

机构：

[1] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

[2] Univ Oslo, Dept Phys, Blindern, Norway

来源：

PHYSICAL REVIEW E | 2007年 / 75卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.75.041404

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Transverse paramagnetic particle chains parametrically driven by a magnetic ratchet potential rupture and heal upon collision with an obstacle. The overdamped transverse dynamics is frozen during the time the particles stay in the ratchet potential wells and kicked during the time the particles hop to the next well. On time scales large compared to the parametric modulation period the healing of the hole in the chain is determined by dipolar repulsion and hydrodynamic friction of the paramagnetic particles.

引用

页数：5

共 21 条

[1] Entropically driven microphase transitions in mixtures of colloidal rods and spheres [J].