Eutectic composition of GaSb-V_{2}Ga_{5} as a Granular Superconductor

Authors: M. I. ALIYEV, E. A. ISAYEVA, G. I. ISAKOV, I. M. ALIYEV

Abstract: Investigation of superconductivity in eutectic GaSb-V_{2}Ga_{5} obtained at various crystallization rates, v, showed, that transition temperature T_{c} decreases with increasing v. This behaviour of, T_{c}, is explained by Ginzburg exciton theory for granulated superconductors. It is established, that the T_{c} of eutectic GaSb-V_{2}Ga_{5} is higher than of pure V_{2}Ga_{5}. This is explained by influence of disordered semiconductor-metal boundary. An attempt is made to connect the obtained results with the theory of L. Zadeh.

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