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Pis'ma v Zh. Èksper. Teoret. Fiz., 2018, Volume 107, Issue 10, Pages 668–672 (Mi jetpl5579)  

CONDENSED MATTER

Coulomb drag of dipole excitons in a hybrid exciton-electron system

M. V. Boeva, V. M. Kovalevba

a Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
b Novosibirsk State Technical University, Novosibirsk, Russia

Abstract: The effect of Coulomb drag on a gas of dipole excitons in spatially separated two-dimensional quantum wells containing electron and exciton gases is studied theoretically. The Coulomb drag of excitons can be used to control exciton transport in transistor structures whose active element is a two-dimensional gas of dipole excitons. Expressions for the exciton cross conductivity as a function of temperature are obtained for the diffusion and ballistic transport regimes. For each regime, the limiting cases in terms of the ratio of the Coulomb interaction screening length to the distance between the gases are analyzed. It is shown that, at temperatures exceeding considerably the exciton-gas degeneracy temperature, the cross conductivity is independent of the temperature, while in the opposite case it vanishes exponentially.

Funding Agency Grant Number
Russian Foundation for Basic Research 16-02-00565_а
Фонд развития теоретической физики и математики “БАЗИС” 17-15-526-1


DOI: https://doi.org/10.7868/S0370274X18100090

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English version:
Journal of Experimental and Theoretical Physics Letters, 2018, 107:10, 635–639

Bibliographic databases:

Document Type: Article
Received: 09.04.2018

Citation: M. V. Boev, V. M. Kovalev, “Coulomb drag of dipole excitons in a hybrid exciton-electron system”, Pis'ma v Zh. Èksper. Teoret. Fiz., 107:10 (2018), 668–672; JETP Letters, 107:10 (2018), 635–639

Citation in format AMSBIB
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\paper Coulomb drag of dipole excitons in a hybrid exciton-electron system
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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\vol 107
\issue 10
\pages 668--672
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\crossref{https://doi.org/10.7868/S0370274X18100090}
\transl
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\pages 635--639
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  • Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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