751676.fig.007a
(a)
751676.fig.007b
(b)
751676.fig.007c
(c)
751676.fig.007d
(d)
751676.fig.007e
(e)
751676.fig.007f
(f)
Figure 7: (a) The variation of DC-electrical conductivity as a function of temperature for pure 212-Bi-Sr-V-O system. (b) The variation of DC-electrical conductivity as a function of temperature for (b) Bi2SrV1.95Mn0.05O9. (c) The variation of DC-electrical conductivity as a function of temperature for (c) Bi2SrV1.9Mn0.1O9. (d) The variation of DC-electrical conductivity as a function of temperature for (d) Bi2SrV1.8Mn0.2O9. (e) The variation of DC-electrical conductivity as a function of temperature for (e) Bi2SrV1.7Mn0.3O9. (f) The variation of DC-electrical conductivity as a function of temperature for (f) Bi2SrV1.6Mn0.4O9.