Sliding Wigner solid on liquid 4He

Keiya Shirahama, Kimitoshi Kono

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

We report a systematic experimental study of the anomalous nonlinear magnetotransport in the Wigner solid (WS) trapped on a liquid 4He surface. The ac Corbino conductivity σxx exhibits an abrupt jump at a certain driving voltage. The threshold input voltage Vth for the σxx jump varies as Vth ∝ B-0.8ω-1ns 1.5E , where B, ω, ns, and E are magnetic field, frequency, electron density and pressing electric field, respectively. We interpret the σxx jump as the transition between the WS accompanied with the periodic 4He surface deformation and the WS which decouples from the surface, due to the large driving force. A simple model is presented: The rigid-potential sliding model qualitatively explains the above mentioned behaviors of Vth. We have found that the dependences of σxx on B and E are different from those of the liquid phase. The anomalous behaviors of σxx play a crucial role on the sliding model.

Original languageEnglish
Pages (from-to)237-264
Number of pages28
JournalJournal of Low Temperature Physics
Volume104
Issue number3-4
Publication statusPublished - 1996
Externally publishedYes

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sliding
Liquids
liquids
Galvanomagnetic effects
liquid surfaces
Electric potential
electric potential
pressing
Carrier concentration
liquid phases
Electric fields
Magnetic fields
conductivity
thresholds
electric fields
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Sliding Wigner solid on liquid 4He. / Shirahama, Keiya; Kono, Kimitoshi.

In: Journal of Low Temperature Physics, Vol. 104, No. 3-4, 1996, p. 237-264.

Research output: Contribution to journalArticle

Shirahama, K & Kono, K 1996, 'Sliding Wigner solid on liquid 4He', Journal of Low Temperature Physics, vol. 104, no. 3-4, pp. 237-264.
Shirahama, Keiya ; Kono, Kimitoshi. / Sliding Wigner solid on liquid 4He. In: Journal of Low Temperature Physics. 1996 ; Vol. 104, No. 3-4. pp. 237-264.
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