Hall Effect in the mixed state of moderately clean superconductors

Details Hall Effect in the mixed state of moderately clean superconductors Hall Effect in the mixed state of moderately clean superconductors

1996-10-15

arxiv.org/abs/cond-mat/9610122v3

J. Phys.:Cond. Mat. {\bf 9}, (1997) L397-L402

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1088/0953-8984/9/28/001

The Hall conductivity in the mixed state of a clean ($l \gg \xi_0$) type-II s-wave superconductor is determined from a microscopic calculation within a quasiclassical approximation. We find that below the superconducting transition the contribution to the transverse conductivity due to dynamical fluctuations of the order parameter is compensated by the modification of the quasiparticle contribution. In this regime the nonlinear behaviour of the Hall angle is governed by the change in the effective quasiparticle scattering rate due to the reduction in the density of states at the Fermi level. The connection with experimental results is discussed.

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