Coherent Magnetotransport Through an Artificial Molecule

C. A. Stafford; S. Das Sarma

doi:10.1016/s0375-9601(97)00234-x

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arXiv · cond-mat/9505058

Coherent Magnetotransport Through an Artificial Molecule

C. A. Stafford·S. Das Sarma

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Abstract

The conductance in an extended multiband Hubbard model describing linear arrays of up to ten quantum dots is calculated via a Lanczos technique. A pronounced suppression of certain resonant conductance peaks in an applied magnetic field due to a density-dependent spin-polarization transition is predicted to be a clear signature of a coherent ``molecular'' wavefunction in the array. A many-body enhancement of localization is predicted to give rise to a {\em giant magnetoconductance} effect in systems with magnetic scattering.

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C. A. Stafford, S. Das Sarma. 1995-05-12. Coherent Magnetotransport Through an Artificial Molecule. https://doi.org/10.1016/s0375-9601(97)00234-x

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