• Featured in Physics

Point-Contact Transport Properties of Strongly Correlated Electrons on Liquid Helium

D. G. Rees, I. Kuroda, C. A. Marrache-Kikuchi, M. Höfer, P. Leiderer, and K. Kono
Phys. Rev. Lett. 106, 026803 – Published 14 January 2011
Physics logo

Abstract

We present transport measurements of a nondegenerate two-dimensional electron system on the surface of liquid helium at a point constriction. The constriction is formed in a microchannel by a split gate beneath the helium surface. The electrostatic energy of the electron system, which depends in part on the electron density, determines the split-gate voltage threshold of current flow through the constriction. Steplike increases in conductance are observed as the confinement strength is reduced. As the Coulomb interaction between electrons is strong, we attribute this effect to the increase in the number of electrons that can pass simultaneously through the constriction. Close to the threshold, single-electron transport is observed.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 14 September 2010

DOI:https://doi.org/10.1103/PhysRevLett.106.026803

© 2011 American Physical Society

Authors & Affiliations

D. G. Rees1,*, I. Kuroda1,2, C. A. Marrache-Kikuchi1,†, M. Höfer3, P. Leiderer3, and K. Kono1,2

  • 1Low Temperature Physics Laboratory, RIKEN, Wako 351-0198, Japan
  • 2Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
  • 3Faculty of Physics, University of Konstanz, 78457 Konstanz, Germany

  • *drees@riken.jp
  • CSNSM, Bâtiment 108, 91405 Orsay, France.

See Also

Electrons Take Turns Like Pedestrians

Don Monroe
Phys. Rev. Focus 27, 3 (2011)

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 106, Iss. 2 — 14 January 2011

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×