Persistent Currents in 1D Disordered Rings of Interacting Electrons

Details Persistent Currents in 1D Disordered Rings of Interacting Electrons Persistent Currents in 1D Disordered Rings of Interacting Electrons

1993-10-05

arxiv.org/abs/cond-mat/9310007v1

Physics

Condensed Matter

Latex file, 11 pages, 5 figures available on request, Report LPQTH-93/18

Scientific paper

10.1103/PhysRevB.49.8258

We calculate the persistent current of 1D rings of spinless fermions with short-range interactions on a lattice with up to 20 sites, and in the presence of disorder, for various band fillings. We find that {\it both} disorder and interactions always decrease the persistent current by localizing the electrons. Away from half-filling, the interaction has a much stronger influence in the presence of disorder than in the pure case.

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