Nonlinear Conductivity of the Two-dimensional Wigner Solid on the Free Surface of Normal and Superfluid ^3He(Condensed Matter : Structure, Mechanical and Thermal Properties)
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概要
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The theory of nonlinear conductivity of the 2D Wigner solid (WS) formed on the surface of normal and superfluid ^3He is presented. We show that extremely strong damping of the Fermi-liquid ^3He greatly affects the dimple sublattice of surface displacements moving along with the WS, which induces the nonlinear conductivity of surface electrons long before the conventional Bragg-Cherenkov condition is achieved. Both the hydrodynamic and long mean-free-path regimes are considered in order to find the velocity induced transformation of the dimple sublattice and field-velocity characteristics of the WS. Depending on the regime of measurement the theory describes dynamic decoupling of the WS from surface dimples, or the field-velocity characteristics which has regions with negative differential conductivity.
- 一般社団法人日本物理学会の論文
- 2005-03-15
著者
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Kono Kimitoshi
Low Temperature Physical Laboratory Riken
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Monarkha Yuriy
Low Temperature Physics Laboratory Riken:institute For Low Temperature Physics And Engineering
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