Magnetoconductance of electrons on liquid helium in the extreme quantum limit

Scheuzger, P.; Neuenschwander, J.; Joss, W.; Wyder, P.

doi:10.1016/0921-4526(94)90945-8

Cited by 13 publications

(3 citation statements)

References 3 publications

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“…We observe the effect of electronelectron interactions on altering the orbital paths of electrons in small magnetic fields, which results in Drude behavior. This crossover from Drude to SCBA behavior has been confirmed by earlier experiments in the quantum limit, 2,4,5,[7][8][9][10][11] h " ! c > kT, at high densities.…”

Section: Introductionsupporting

confidence: 79%

Magnetoresistivity of a Weakly-Screened, Low-Density, Two-Dimensional Electron Liquid

Karakurt

Dahm

2013

J. Phys. Soc. Jpn.

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We probe the strength of electron-electron interactions at intermediate magnetic fields in the classical regime using magnetoconductivity measurements of two-dimensional, non-degenerate electrons on liquid helium. We span both the independent-electron regime, where the data are qualitatively described by the self-consistent Born approximation (SCBA), and the strongly-interacting electron (Drude) regime. We observe a crossover from SCBA to Drude theory at finite magnetic fields as a function of electron density. The SCBA magnetoresistance is found to be density dependent. Our data confirm the theory for magnetoresistivity in a weakly screened, two-dimensional electron gas, and demonstrate that electron-electron interactions are important to very low densities.

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Section: Introductionsupporting

confidence: 79%

Magnetoresistivity of a Weakly-Screened, Low-Density, Two-Dimensional Electron Liquid

Karakurt

Dahm

2013

J. Phys. Soc. Jpn.

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“…[5][6][7]. The corresponding results obtained within the self-consistent Born approximation 8 (SCBA) appeared to be in reasonable agreement with the experiment [9][10][11] .…”

Section: Introductionsupporting

confidence: 76%

“…As we show below, this simplification allows us to make accurate calculations of the frequency-dependent conductivity using the method of moments, which was previously suggested for this problem by one of us 13 . (11) of a non-interacting 2DES at the lowest Landau level in a short-range disorder potential for ω, γ ≪ kBT /h. For small frequencies, ω ≪ γ, the conductivity is singular, σxx ∼ ω µ .…”

Section: Introductionmentioning

confidence: 99%

Single-electron magnetoconductivity of a nondegenerate two-dimensional electron system in a quantizing magnetic field

2001

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We study transport properties of a non-degenerate two-dimensional system of non-interacting electrons in the presence of a quantizing magnetic field and a short-range disorder potential. We show that the low-frequency magnetoconductivity displays a strongly asymmetric peak at a nonzero frequency. The shape of the peak is restored from the calculated 14 spectral moments, the asymptotic form of its high-frequency tail, and the scaling behavior of the conductivity for ω → 0. We also calculate 10 spectral moments of the cyclotron resonance absorption peak and restore the corresponding (non-singular) frequency dependence using the continuous fraction expansion. Both expansions converge rapidly with increasing number of included moments, and give numerically accurate results throughout the region of interest. We discuss the possibility of experimental observation of the predicted effects for electrons on helium.

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Many-Electron Transport Phenomena in Nondegenerate 2D Electron Systems

Dykman

1997

Physics and Chemistry of Materials With Low-Dimensional Structures

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Magnetoconductance of electrons on liquid helium in the extreme quantum limit

Cited by 13 publications

References 3 publications

Magnetoresistivity of a Weakly-Screened, Low-Density, Two-Dimensional Electron Liquid

Magnetoresistivity of a Weakly-Screened, Low-Density, Two-Dimensional Electron Liquid

Single-electron magnetoconductivity of a nondegenerate two-dimensional electron system in a quantizing magnetic field

Many-Electron Transport Phenomena in Nondegenerate 2D Electron Systems

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