Conductance in a one-dimensional spin polarized gas
We present a theoretical analysis of the recent experimental results of Thomas et al. on transport properties of spin-polarized quantum wires. We suggest an explanation of the observed deviations of the conductance from the universal value G = 2e2/h per channel in the wire. We argue that the new quasiplateau observed for the conductance at the value G = 1.4e2/h is a result of the proximity between the spin-polarized phase and the metallic phase. The enhancement of the conductance from the value G = e2/h to G = 1.4e2/h is due to the hybridization of the electronic state at KF 0 with the chiral states at KF and - KF.
Document Type: Research Article
Publication date: 01 May 1998
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