Interaction through Variation of Elastic Energy

Superconductivity is associated with small changes of volume (AV/V « 10-7) and elastic constants (AK/K « 10-4) of the crystal lattice [17] Because of this, the nonsupercon-ducting core of magnetic vortices will have different crystal lattice parameters and elastic constants. Consequently, they will behave like inclusions in the superconducting matrix, producing permanent elastic stress field around the vortices. This field will interact with crystal imperfections, which can result in pinning of the vortices [22-25].

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