Bound state in the continuum and spin filter in artificial molecules

J. P. Ramos; P. A. Orellana

doi:10.1016/j.physb.2014.07.047

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arXiv · 1304.8059

Bound state in the continuum and spin filter in artificial molecules

J. P. Ramos·P. A. Orellana

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Abstract

In this paper we study the formation of bound states in the continuum in a quantum dot molecule coupled to leads. Based in the combination of bound states in the continuum and Fano effect, we propose a new design of a spin-dependent polarizer. By lifting the spin degeneracy of the carriers in the quantum dots by means of a magnetic field the system can be used as a spin-polarized device. A detailed analysis of the spin-dependent conductance and spin polarization as a function of the applied magnetic field and gate voltages is carried out.

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J. P. Ramos, P. A. Orellana. 2013-04-30. Bound state in the continuum and spin filter in artificial molecules. https://doi.org/10.1016/j.physb.2014.07.047

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