The Magneto-Resistivity Anisotropy in High Temperature Superconductors Bi₂₂₁₂ & Y₁₂₃

 Pawan Kumar

Associate Prof., Department of Physics, A.S.(P.G.) College, Sikandrabad, India

The Characteristic shape of resistivity transitions in HTS under magnetic field interaction is mysterious. The magnetoconductivity tensors σ_xx & σ_xy  in case of Y123 has been computed under radiofrequency excitations 1-6 MHz range at H=8000G [1]. The Bi₂₂₁₂ characteristics curves Hall potential V_H, Hall coefficient R_H and magnetodynamically stimulated density of electrical carriers N_H along with the temporal development of magnetopotential records had been observed to relate the magnetoresistivity [2,3]. The normal resistivity and conductivity of HTS Bi₂₂₁₂ between superconducting transition temperature below 100K to above 300K had been depicted. The localized density of states is observed to create anisopropy and the oscillatory behaviour of all these parameters even at room temperatures [4,5].

Keywords: Magnetoconductivity tensors, Hall geometry, Electrical carrier density.

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