Evidence of Landau Levels and Interactions in Low-Lying Excitations of Composite Fermions at [Formula presented]

Irene Dujovne; A. Pinczuk; Moonsoo Kang; B. S. Dennis; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevLett.90.036803

Evidence of Landau Levels and Interactions in Low-Lying Excitations of Composite Fermions at [Formula presented]

Irene Dujovne, A. Pinczuk, Moonsoo Kang, B. S. Dennis, L. N. Pfeiffer, K. W. West

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Excitation modes in the range [Formula presented] of the fractional quantum Hall regime are observed by resonant inelastic light scattering. Spectra of spin-reversed excitations suggest a structure of lowest spin-split Landau levels of composite fermions that is similar to that of electrons. Spin-flip energies determined from spectra reveal significant composite fermion interactions. The filling factor dependence of mode energies displays an abrupt change in the middle of the range when there is partial population of a composite fermion level.

Original language	English (US)
Pages (from-to)	4
Number of pages	1
Journal	Physical review letters
Volume	90
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.90.036803
State	Published - 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.90.036803

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abstract = "Excitation modes in the range [Formula presented] of the fractional quantum Hall regime are observed by resonant inelastic light scattering. Spectra of spin-reversed excitations suggest a structure of lowest spin-split Landau levels of composite fermions that is similar to that of electrons. Spin-flip energies determined from spectra reveal significant composite fermion interactions. The filling factor dependence of mode energies displays an abrupt change in the middle of the range when there is partial population of a composite fermion level.",

author = "Irene Dujovne and A. Pinczuk and Moonsoo Kang and Dennis, {B. S.} and Pfeiffer, {L. N.} and West, {K. W.}",

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T1 - Evidence of Landau Levels and Interactions in Low-Lying Excitations of Composite Fermions at [Formula presented]

AU - Dujovne, Irene

AU - Pinczuk, A.

AU - Kang, Moonsoo

AU - Dennis, B. S.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2003

Y1 - 2003

N2 - Excitation modes in the range [Formula presented] of the fractional quantum Hall regime are observed by resonant inelastic light scattering. Spectra of spin-reversed excitations suggest a structure of lowest spin-split Landau levels of composite fermions that is similar to that of electrons. Spin-flip energies determined from spectra reveal significant composite fermion interactions. The filling factor dependence of mode energies displays an abrupt change in the middle of the range when there is partial population of a composite fermion level.

AB - Excitation modes in the range [Formula presented] of the fractional quantum Hall regime are observed by resonant inelastic light scattering. Spectra of spin-reversed excitations suggest a structure of lowest spin-split Landau levels of composite fermions that is similar to that of electrons. Spin-flip energies determined from spectra reveal significant composite fermion interactions. The filling factor dependence of mode energies displays an abrupt change in the middle of the range when there is partial population of a composite fermion level.

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ER -

Evidence of Landau Levels and Interactions in Low-Lying Excitations of Composite Fermions at [Formula presented]

Abstract

All Science Journal Classification (ASJC) codes

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