Sign change of the flux-flow Hall effect in HTSC
Feigel'man M. V. , Geshkenbein V. B. , Larkin A.L., Vinokur V. M.
A novel mechanism for the sign change of the flux-flow Hall effect is proposed. The dependence of the superconducting thermodynamic potential ilsc on the chemical potential μ produces a topological contribution to the Hall conductivity Saxy = ~{dilscld^eclB, which may lead to a double sign change of the Hall effect as a function of temperature. © 1995 American Institute of Physics.