Exciton drag and drift by a two-dimensional electron gas.
Journal Article
·
· Proposed for publication in Physical Review B.
OSTI ID:964159
We show theoretically that an electric current in a high-mobility quasi-two-dimensional electron layer induces a significant drift of excitons in an adjacent layer through interlayer Coulomb interaction. The exciton gas is shown to drift with a velocity which can be a significant fraction of the electron drift velocity at low temperatures. The estimated drift length is of the order of micrometers or larger during the typical exciton lifetime for GaAs/Al{sub x}Ga{sub 1-x} double quantum wells. A possible enhancement of the exciton radiative lifetime due to the drift is discussed.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 964159
- Report Number(s):
- SAND2004-4838J
- Journal Information:
- Proposed for publication in Physical Review B., Journal Name: Proposed for publication in Physical Review B.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Perfect Coulomb drag and exciton transport in an excitonic insulator
Evidence of high-temperature exciton condensation in two-dimensional atomic double layers
Intrinsic, heterointerface excitonic states in GaAs(n)/Al sub 0. 3 Ga sub 0. 7 As(p) double heterostructures
Journal Article
·
Thu Apr 17 20:00:00 EDT 2025
· Science
·
OSTI ID:2583912
Evidence of high-temperature exciton condensation in two-dimensional atomic double layers
Journal Article
·
Wed Oct 02 00:00:00 EDT 2019
· Nature (London)
·
OSTI ID:1656860
Intrinsic, heterointerface excitonic states in GaAs(n)/Al sub 0. 3 Ga sub 0. 7 As(p) double heterostructures
Conference
·
· Journal of Vacuum Science and Technology. B, Microelectronics Processing and Phenomena; (United States)
·
OSTI ID:7047861