Transport of Indirect Excitons in a Potential Energy Gradient

Authors :: Leonard, J. R.
Remeika, M.
Chu, M. K.
Kuznetsova, Y. Y.
High, A. A.
Butov, L. V.
Wilkes, J.
Hanson, M.
Gossard, A. C.
Source :: Appl. Phys. Lett. 100, 231106 (2012)
Publication Year :: 2012
Abstract: We realized a potential energy gradient - a ramp - for indirect excitons using a shaped electrode at constant voltage. We studied transport of indirect excitons along the ramp and observed that the exciton transport distance increases with increasing density and temperature.<br />Comment: 4 pages, 3 figures