Hydrodynamic study of edge spin-vortex excitations of fractional quantum Hall fluid

M. Rabiu; S. Y. Mensah; I. Y. Seini; S. S Abukari

doi:10.1016/j.physleta.2016.05.057

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arXiv · 1602.05636

Hydrodynamic study of edge spin-vortex excitations of fractional quantum Hall fluid

M. Rabiu·S. Y. Mensah·I. Y. Seini·S. S Abukari

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Abstract

We undertake a theoretical study of edge spin-vortex excitations in fractional quantum Hall fluid. This is done in view of quantised Euler hydrodynamics theory. The dispersions of true excitations for fractions within $0\leq ν\leq 1$ are simulated which exhibit universal similarities and differences in behaviour. The differences arise from different edge smoothness and spin (pseudo-spin) polarisations, in addition to spin-charge competition. In particular, tuning the spin-charge factor causes coherent spin flipping associated with partial and total polarisations of edge spin-vortices. This observation is tipped as an ideal mechanism for realisation of functional spintronic devices.

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M. Rabiu, S. Y. Mensah, I. Y. Seini, S. S Abukari. 2016-02-18. Hydrodynamic study of edge spin-vortex excitations of fractional quantum Hall fluid. https://doi.org/10.1016/j.physleta.2016.05.057

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