標題: Bistable transport properties of a quasi-one-dimensional Wigner solid on liquid helium under continuous driving
作者: Rees, David G.
Yeh, Sheng-Shiuan
Lee, Ban-Chen
Kono, Kimitoshi
Lin, Juhn-Jong
電子物理學系
物理研究所
Department of Electrophysics
Institute of Physics
公開日期: 27-十一月-2017
摘要: We investigate low-frequency fluctuations in the transport characteristics of a quasi-1D Wigner solid (WS) moving along a liquid helium substrate in response to a sinusoidal driving voltage. The fluctuations occur between distinct transport modes in which the decoupling of the WS from ripplonic polarons (or "dimple lattice," DL) formed on the helium surface does, or does not, occur during each ac cycle. We demonstrate that a Gaussian-like distribution in the decoupling threshold force gives rise to this bistability, as the low-frequency switching occurs when the probability of decoupling during each ac cycle is small but finite. We attribute the distribution in the decoupling threshold force to the range of structural configurations allowed for the quasi-1D electron lattice, which influences the strength of the WS-DL coupling. Hence, the switching rate between the ac transport modes is extremely sensitive to the microscopic properties of the electron solid.
URI: http://dx.doi.org/10.1103/PhysRevB.96.205438
http://hdl.handle.net/11536/144129
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.96.205438
期刊: PHYSICAL REVIEW B
Volume: 96
Issue: 20
起始頁: 0
結束頁: 0
顯示於類別:期刊論文


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