Symmetric Expansion of An Elastic Ferromagnetic Superconductor

We apply the Miya-Zhou macroscopic theory [1] of superconductors to the problem of long right circular tubes of radii R 1 and R 2 with charged inner and outer surfaces under an applied traction on the inner and outer surfaces which are carrying charges. The material of the tube is taken to be deformable ferromagnetic superconductor with centro-symmetric cubic symmetry. We look for the interactions of mechanical and magnetic fields in the superconducting tube. The changes in the magnetoelastic properties of the ferromagnetic super conductors from the normal state to the superconducting state have been analysed. All the interacting fields are clearly exhibited. The results are deducible to those of the normal ferromagnetic materials.