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Nonequilibrium transport and the Bernoulli effect of electrons in a two-dimensional electron gas

Kaya, İsmet İnönü (2013) Nonequilibrium transport and the Bernoulli effect of electrons in a two-dimensional electron gas. Modern Physics Letters B, 27 (4). ISSN 0217-9849 (Print) 1793-6640 (Online)

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Official URL: http://dx.doi.org/10.1142/S0217984913300019

Abstract

Nonequilibrium transport of charged carriers in a two-dimensional electron gas is summarized from an experimental point of view. The transport regime in which the electron–electron interactions are enhanced at high bias leads to a range of striking effects in a two-dimensional electron gas. This regime of transport is quite different than the ballistic transport in which particles propagate coherently with no intercarrier energy transfer and the diffusive transport in which the momentum of the electron system is lost with the involvement of the phonons. Quite a few hydrodynamic phenomena observed in classical gasses have the electrical analogs in the current flow. When intercarrier scattering events dominate the transport, the momentum sharing via narrow angle scattering among the hot and cold electrons lead to negative resistance and electron pumping which can be viewed as the analog of the Bernoulli–Venturi effect observed classical gasses. The recent experimental findings and the background work in the field are reviewed.

Item Type:Article
Additional Information:Article Number: 1330001
Uncontrolled Keywords:Two-dimensional electron gas; nonequilibrium transport; Bernoulli effect; Venturi effect; negative resistance; electron pump
Subjects:Q Science > QC Physics > QC176-176.9 Solids. Solid state physics
ID Code:23642
Deposited By:İsmet İnönü Kaya
Deposited On:08 Jan 2014 15:51
Last Modified:17 Sep 2015 14:22

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