Transverse force on a quantized vortex in a superconductor

Details Transverse force on a quantized vortex in a superconductor Transverse force on a quantized vortex in a superconductor

1997-12-15

arxiv.org/abs/cond-mat/9712173v1

Physics

Condensed Matter

4 pages, Revtex, 1 figure

Scientific paper

10.1103/PhysRevB.57.R8119

The total transverse force acting on a quantized vortex in a type-II superconductor determines the Hall response in the mixed state, yet a consensus as to its correct form is still lacking. In this paper we present an essentially exact expression for this force, valid in the superclean limit, which was obtained by generalizing the recent work by Thouless, Ao, and Niu [D. J. Thouless, P. Ao, and Q. Niu, Phys. Rev. Lett. 76, 3758 (1996)] on the Magnus force in a neutral superfluid. We find the transverse force per unit length to be $f = \rho K \times V$, where $\rho = \rho_{n} + \rho_{s}$ is the sum of the mass densities of the normal and superconducting components, $K$ is a vector parallel to the line vortex with a magnitude equal to the quantized circulation, and $V$ is the vortex velocity.

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