Volume 86, Number 3, May 2009
Article Number 36001
Number of page(s) 4
Section Condensed Matter: Structural, Mechanical and Thermal Properties
Published online 11 May 2009
EPL, 86 (2009) 36001
DOI: 10.1209/0295-5075/86/36001

Ionic polarizability of interacting charged rods

G. S. Manning

Department of Chemistry and Chemical Biology, Rutgers University - 610 Taylor Road, Piscataway, NJ 08854-8087, USA

received 18 February 2009; accepted in final form 15 April 2009; published May 2009
published online 11 May 2009

The counterions condensed on rodlike polyion segments are polarized by the longitudinal component of an external electric field. We show that the polarizability is diminished by electrostatic interactions among the rods. This result may be a useful step toward the understanding of anomalous birefringence of charged rodlike particles such as fd virus in conditions favoring interactions.

61.30.Gd - Orientational order of liquid crystals; electric and magnetic field effects on order.
77.22.Ej - Polarization and depolarization.
78.20.Fm - Birefringence.

© EPLA 2009