Abstract:
Super conductivity is one of the most important physic phenomenons that
has a wide variety of applications in technology. It was successfully described
by BCS theory. But recently some materials that act as a superconductor at
higher temperatures, changes critical temperature due to the effect of pressure
or isotope mass. This cannot be explained by BCS model. Some researchers
suggest hoping mechanism for explaining high temperature super conductor’s
behavior. But unfortunately the models proposed are complex and incomplete.
The aim of this work is to use the generalized statistical physical model
proposed by some researchers was used to explain the conditions that lead to
hopping when kinetic energy exceeds coulomb potential, which agrees with
that proposed by Hubbard model. The hopping also proved to take place below
critical temperature, while it does not exist above this critical temperature. The
hopping is also destroyed when magnetic field exceeds certain critical value.
The flux is also quantized with in the frame work of this models. The results
obtained by this model agree with observations and previous modelsThus one
can conclude that generalized statistical model can successfully describe some
superconducting phenomena
