☆ 4.8 Article

Spin Transport of Excitons

NANO LETTERS (2009)

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Journal

NANO LETTERS
Volume 9, Issue 12, Pages 4204-4208

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/nl9024227

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Categories

Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter

Funding

  1. DOE
  2. EPSRC

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We report on observation of the spin transport of spatially indirect excitons in GaAs/AlGaAs coupled quantum wells (COW). Exciton spin transport over substantial distances, up to several micrometers in the present work, is achieved due to orders of magnitude enhancement of the exciton spin relaxation time in COW with respect to conventional quantum wells.

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