Anomalies of the fractional quantum Hall effect in a wide ballistic wire

Kvon, Z. D.; Ol'shanetskiĭ, E. B.; Plotnikov, A. E.; Toropov, A. I.; Portal, J. C.

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Anomalies of the fractional quantum Hall effect in a wide ballistic wire

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Ol'shanetskiĭ, E. B.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Portal, J. C.
High Magnetic Field Laboratory, Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Kvon, Z. D., Ol'shanetskiĭ, E. B., Plotnikov, A. E., Toropov, A. I., & Portal, J. C. (2002). Anomalies of the fractional quantum Hall effect in a wide ballistic wire. Semiconductors, 36(8), 921-923.

Cite as: https://hdl.handle.net/21.11116/0000-000E-EAA1-4

Abstract

Magnetotransport in a ballistic wire under the conditions of
integer and fractional quantization was studied experimentally.
A nonlinear magnetic-field dependence of filling factor (nu) of
the Landau level was observed; this dependence arises if the
self-consistent electrostatic potential of the wire has a
specific form. It is assumed that the observed effect results
from the influence of interaction between electrons at the
partially occupied Landau level on this potential, which brings
about a decrease in the electron concentration in the wire as
the magnetic field increases in the case of nu < 1. (C) 2002
MAIK "Nauka / Interperiodica".