The influence of quantum fluctuations on quantum hall phases at large rs

G. A. Csáthy; D. C. Tsui; L. N. Pfeiffer; K. W. West

doi:10.1016/j.physe.2006.03.036

The influence of quantum fluctuations on quantum hall phases at large r_s

G. A. Csáthy, D. C. Tsui, L. N. Pfeiffer, K. W. West

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

Abstract

We have explored the behavior of a two-dimensional hole system in the regime of very low densities and hence large r_s. The electronic phases at the largest magnetic fields have surprising behavior. We found that with decreasing density the reentrant insulating phase weakens until it completely disappears. We also found that at the collapse of the reentrant insulator the nearby ν = frac(1, 3) fractional quantum Hall liquid is unexpectedly suppressed. Both of these properties can be understood as stemming from quantum fluctuations of the insulating electronic solid.

Original language	English (US)
Pages (from-to)	210-213
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	34
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physe.2006.03.036
State	Published - Aug 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Keywords

Quantum fluctuations
Strong interaction limit
Wigner solid

Access to Document

10.1016/j.physe.2006.03.036

Cite this

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title = "The influence of quantum fluctuations on quantum hall phases at large rs",

abstract = "We have explored the behavior of a two-dimensional hole system in the regime of very low densities and hence large rs. The electronic phases at the largest magnetic fields have surprising behavior. We found that with decreasing density the reentrant insulating phase weakens until it completely disappears. We also found that at the collapse of the reentrant insulator the nearby ν = frac(1, 3) fractional quantum Hall liquid is unexpectedly suppressed. Both of these properties can be understood as stemming from quantum fluctuations of the insulating electronic solid.",

keywords = "Quantum fluctuations, Strong interaction limit, Wigner solid",

author = "Cs{\'a}thy, {G. A.} and Tsui, {D. C.} and Pfeiffer, {L. N.} and West, {K. W.}",

year = "2006",

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language = "English (US)",

volume = "34",

pages = "210--213",

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T1 - The influence of quantum fluctuations on quantum hall phases at large rs

AU - Csáthy, G. A.

AU - Tsui, D. C.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2006/8

Y1 - 2006/8

N2 - We have explored the behavior of a two-dimensional hole system in the regime of very low densities and hence large rs. The electronic phases at the largest magnetic fields have surprising behavior. We found that with decreasing density the reentrant insulating phase weakens until it completely disappears. We also found that at the collapse of the reentrant insulator the nearby ν = frac(1, 3) fractional quantum Hall liquid is unexpectedly suppressed. Both of these properties can be understood as stemming from quantum fluctuations of the insulating electronic solid.

AB - We have explored the behavior of a two-dimensional hole system in the regime of very low densities and hence large rs. The electronic phases at the largest magnetic fields have surprising behavior. We found that with decreasing density the reentrant insulating phase weakens until it completely disappears. We also found that at the collapse of the reentrant insulator the nearby ν = frac(1, 3) fractional quantum Hall liquid is unexpectedly suppressed. Both of these properties can be understood as stemming from quantum fluctuations of the insulating electronic solid.

KW - Quantum fluctuations

KW - Strong interaction limit

KW - Wigner solid

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JO - Physica E: Low-Dimensional Systems and Nanostructures

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