Description of the Transport Characteristics of Charge Carriers in Normal State Superconductor YBa2Cu3O7-δ 1

The general expressions based on the Fermi distribution of the free charge carriers are applied for
estimation of the transport characteristics in superconductors at the temperature well above the
superconducting phase transition temperature TC. The Hall-effect experimental results in the normal
state of the superconductor YBa2Cu3O7- are not finally explained. On the ground of the randomly
moving charge carriers there are presented the transport characteristics for both single type and two
types of the charge carriers. The particular attention has been pointed to the Hall-effect measurement
results of the high-TC superconductor YBa2Cu3O7-. It is at the first time derived the Hall coefficient
expression for two type of highly degenerate charge carriers (electrons and holes) on the ground of
the randomly moving charge carriers at the Fermi surface. It is shown that the Hall coefficient and
other transport characteristics are determined by the ratio between the electron-like and hole-like
density-of-states at the Fermi surface.