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VOLUME 62 | ISSUE 10 | PAGE 811
Sign Change of the Flux Flow Hall Effect in HTSC
A novel mechanism for the sign-change of the flux flow Hall effect is proposed. The dependence of the superconducting thermodynamic potential Qtc on the chemical potential μ produces the topological contribution to the Hall conductivity Ι9 — — (dO*c/cV)ec/£, which may lead to a double sign-change of the Hall effect as a function of temperature.