Quantum Hall fluctuations and evidence for charging in the quantum Hall effect

Details Quantum Hall fluctuations and evidence for charging in the quantum Hall effect Quantum Hall fluctuations and evidence for charging in the quantum Hall effect

1999-02-10

arxiv.org/abs/cond-mat/9902154v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages RevTeX including 4 postscript bitmapped figures

Scientific paper

10.1103/PhysRevLett.82.4695

We find that mesoscopic conductance fluctuations in the quantum Hall regime in silicon MOSFETs display simple and striking patterns. The fluctuations fall into distinct groups which move along lines parallel to loci of integer filling factor in the gate voltage-magnetic field plane. Also, a relationship appears between the fluctuations on quantum Hall transitions and those found at low densities in zero magnetic field. These phenomena are most naturally attributed to charging effects. We argue that they are the first unambiguous manifestation of interactions in dc transport in the integer quantum Hall effect.

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