• A K Gangopadhyay

      Articles written in Pramana – Journal of Physics

    • Residual resistivity in Ni-Fe-Cr/V alloys and the two-current model

      A K Gangopadhyay A K Majumdar

      More Details Abstract Fulltext PDF

      The resistivity of a large number of Ni-Fe-Cr/V alloys has been measured at 77 K. An attempt has been made to explain the concentration dependence of resistivity in the light of Mott’s two-current model. It is seen that contrary to earlier observation, the model is applicable to a larger range of concentration for the Ni-Fe-Cr series. Appreciable deviation from the model starts for Fe concentration exceeding about 15 at. % and Cr about 7 to 8 at. %. However, for similar concentration range in Ni-Fe-V series, disagreement between the experimental and theoretical results is more pronounced.

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