The problem of phonon scattering by biaxial wedge disclination dipoles of finite length was studied within the framework of the deformation potential approach. A marked cross-over in the thermal conductivity behavior, from T to T2, was found at low temperatures; due to the finiteness of the disclination lines.

Peculiarities in the Low-Temperature Phonon Scattering by Finite Wedge Disclination Dipoles. S.E.Krasavin, V.A.Osipov: Physics Letters A, 2001, 277[4-5], 245-8