Nonohmic Coulomb drag in the ballistic electron transport regime
V. L. GurevichSolid State Physics Department, Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021, RussiaM. I. MuradovSolid State Physics Department, Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia
ABI
Abstract
We developed the theory of Coulomb drag current induced in a one-dimensional nanowire by the ballistic nonohmic current in a nearby parallel nanowire under the ballistic transport regime. As in the ohmic case, we predict sharp oscillations of the drag current as a function of gate voltage or chemical potential of electrons. We also study the dependence of drag current on the voltage V across the driving wire. For relatively large values of V, the drag current is proportional to V 2.
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