Dynamics of some constrained lattices
arXiv:cond-mat/0011194 · doi:10.1103/PhysRevLett.86.1781
Abstract
We consider the dynamics of lattices which have constrained constitutive units flexible in only their mutual orientations. A continuum description is derived through which it is shown that the models have zero shear velocity, free-particle like internal rotational modes and volume decreasing linearly with temperature. The relevance of modelsto a range of problems is pointed out.
5 pages, 2 EPS figures