Sliding Wigner solid on liquid 4He

Keiya Shirahama, Kimitoshi Kono

研究成果: Article

62 引用 (Scopus)

抜粋

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-1ns1.5E , 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.

元の言語English
ページ(範囲)237-264
ページ数28
ジャーナルJournal of Low Temperature Physics
104
発行部数3-4
DOI
出版物ステータスPublished - 1996 1 1
外部発表Yes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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