Quantum antidot as a controllable spin injector and spin filter

I. V. Zozoulenko; M. Evaldsson

doi:10.1063/1.1804249

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Quantum antidot as a controllable spin injector and spin filter

I. V. Zozoulenko·M. Evaldsson

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Abstract

We propose a device based on an antidot embedded in a narrow quantum wire in the edge state regime, that can be used to inject and/or to control spin polarized current. The operational principle of the device is based on the effect of resonant backscattering from one edge state into another through a localized quasi-bound states, combined with the effect of Zeeman splitting of the quasibound states in sufficiently high magnetic field. We outline the device geometry, present detailed quantum-mechanical transport calculation and suggest a possible scheme to test the device performance and functionality.

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I. V. Zozoulenko, M. Evaldsson. 2004-05-05. Quantum antidot as a controllable spin injector and spin filter. https://doi.org/10.1063/1.1804249

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