Eutectic composition of GaSb- $V_2Ga_5$ as a granular superconductor

Özet

Investigation of superconductivity in eutectic GaSb — $V_2Ga_5$ 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 — $V_2Ga_5$ is higher than of pure $V_2Ga_5$ . 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.