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 = √6 ax^, = √6 ay^, and =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.
- Received 19 February 1991
DOI:https://doi.org/10.1103/PhysRevLett.67.398
©1991 American Physical Society