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Journal of Low Temperature Physics

, Volume 187, Issue 5–6, pp 427–432 | Cite as

Plasma Modes of the Three-Chain Electron System Over Liquid Helium

  • S. S. Sokolov
  • V. E. Syvokon
Article

Abstract

We simulate the surface electron system over liquid helium subjected to a confinement potential in the electron layer plane. In the solid phase, the two-dimensional system is observed to transform first into a multi-chain system and, finally, into a three chain, a zigzag structure and a single chain. Both longitudinal and transversal plasma oscillations of the three-chain electron system are determined. One of the longitudinal oscillation modes is acoustic, whereas the other two are optical. On turn, all transversal oscillations branches are optical. The theoretical results obtained can be used to identify experimentally the configurations of the low-dimensional electron system over helium under confinement potential.

Keywords

Surface electrons on helium Low-dimensional systems Plasma oscillations 

Notes

Acknowledgements

The authors are greatly indebted to Nelson Studart for useful discussions.

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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of UkraineKharkovUkraine

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