Frictional Drag induced in Low- Dimensional Systems by Brownian Motion of Ions in Liquid Flow

Details Frictional Drag induced in Low- Dimensional Systems by Brownian Motion of Ions in Liquid Flow Frictional Drag induced in Low- Dimensional Systems by Brownian Motion of Ions in Liquid Flow

2009-10-28

arxiv.org/abs/0910.5473v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 figures

Scientific paper

We study the frictional drag force in low-dimensional systems (2D-electron and 2D-liquid systems) mediated by a fluctuating electromagnetic field which originate from Brownian motion of ions in liquid. The analysis is focused on the [2D-system-2D-system], [2D-system-semi-infinite liquid], and [2D-system-infinite liquid] configurations. We show that for 2D-electron systems the friction drag depends linearly on the relative velocity of the free carries of charge in the different media, but for 2D-liquid systems the frictional drag depends nonlinear on the relative velocity. For 2D-systems the frictional drag force induced by liquid flow may be several orders of magnitude larger than the frictional drag induced by an electronic current.

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