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Topographic mapping of the quantum hall liquid using a few-electron bubble

Publication ,  Journal Article
Finkelstein, G; Glicofridis, PI; Ashoori, RC; Shayegan, M
Published in: Science
July 7, 2000

A scanning probe technique was used to obtain a high-resolution map of the random electrostatic potential inside the quantum Hall liquid. A sharp metal tip, scanned above a semiconductor surface, sensed charges in an embedded twodimensional (2D) electron gas. Under quantum Hall effect conditions, applying a positive voltage to the tip locally enhanced the 2D electron density and created a 'bubble' of electrons in an otherwise unoccupied Landau revel as the tip scanned along the sample surface, the bubble followed underneath. The tip sensed the motions of single electrons entering or leaving the bubble in response to changes in the local 2D electrostatic potential.

Duke Scholars

Published In

Science

DOI

ISSN

0036-8075

Publication Date

July 7, 2000

Volume

289

Issue

5476

Start / End Page

90 / 94

Related Subject Headings

  • General Science & Technology
 

Citation

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Finkelstein, G., Glicofridis, P. I., Ashoori, R. C., & Shayegan, M. (2000). Topographic mapping of the quantum hall liquid using a few-electron bubble. Science, 289(5476), 90–94. https://doi.org/10.1126/science.289.5476.90
Finkelstein, G., P. I. Glicofridis, R. C. Ashoori, and M. Shayegan. “Topographic mapping of the quantum hall liquid using a few-electron bubble.” Science 289, no. 5476 (July 7, 2000): 90–94. https://doi.org/10.1126/science.289.5476.90.
Finkelstein G, Glicofridis PI, Ashoori RC, Shayegan M. Topographic mapping of the quantum hall liquid using a few-electron bubble. Science. 2000 Jul 7;289(5476):90–4.
Finkelstein, G., et al. “Topographic mapping of the quantum hall liquid using a few-electron bubble.” Science, vol. 289, no. 5476, July 2000, pp. 90–94. Scopus, doi:10.1126/science.289.5476.90.
Finkelstein G, Glicofridis PI, Ashoori RC, Shayegan M. Topographic mapping of the quantum hall liquid using a few-electron bubble. Science. 2000 Jul 7;289(5476):90–94.
Journal cover image

Published In

Science

DOI

ISSN

0036-8075

Publication Date

July 7, 2000

Volume

289

Issue

5476

Start / End Page

90 / 94

Related Subject Headings

  • General Science & Technology