Thesiss

This thesis addresses the tunnelling of charge carriers in different materials. First looking at the simplest case of electron tunnelling in metals at zero, then finite temperature, the current is obtained using the Fermi-Dirac golden rule and then the conductance is obtained. T…

The high temperature superconductivity in cuprates is realized by off-stoichiometric doping. In addition to contributing carriers to the CuO2 planes, the dopants inherently introduce local disorder into the systems. Using the X-ray diffuse scattering technique, we studied the do…