Bound state in the continuum and spin filter in artificial molecules

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.

6 pages, 8 figures and appendix

References in corpus (2)

• Bound states in the continuum driven by AC fields
• Bipolar spin filter in a quantum dot molecule

Cited by in corpus (10)

• Observation of an accidental bound state in the continuum in a chain of dielectric disks
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• Topological properties of bound-states-in-the-continuum in geometries with broken anisotropy-symmetry
• Spin-Seebeck effect and spin polarization in a multiple quantum dot molecule
• Angular Control of Anisotropy-Induced Bound States in the Continuum
• Bound States in the Continuum in Spin-Orbit Coupled Atomic Systems
• Fano-Majorana effect and bound states in the continuum on a crossbar-shaped quantum dot hybrid structure
• Majorana bound state in the continuum: Coupling between Majorana bound state and quantum dot mediated by continuum
• Bound states in the continuum in a two-channel Fano-Anderson model
• Bound states in the continuum poisoned by Majorana fermions