Three-dimensional structure of induced electrorheological solid

Abstract

The induced electrorheological solid has thick columns in the field direction (z axis), spreading between two electrodes. The ground state is proposed to be a body-centered tetragonal lattice with a1= 6 ax a2= 6 ay and a3=2az where a is the radius of dielectric spheres. This bct lattice can be regarded as a compound of chains of class A and B, where chains B are obtained from chains A by shifting a distance a in the z direction. © 1991 The American Physical Society.