Kondo physics versus spin gap physics in fully spin-split quantum wires

Details Kondo physics versus spin gap physics in fully spin-split quantum wires Kondo physics versus spin gap physics in fully spin-split quantum wires

2009-03-14

arxiv.org/abs/0903.2538v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

just over 6 pages, 6 figures; minor revision: removed topic spin incoherence

Scientific paper

Linear and nonlinear transport of quantum wires is investigated at a magnetic field where spin-split one-dimensional (1D) subbands are equidistant in energy. In this seldom-studied regime, experiments are consistent with a density-dependent energy gap between spin subbands, and with a complete spin polarization of the first 1D subband under a large source-drain bias at zero field.

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