| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1547959 | Physica E: Low-dimensional Systems and Nanostructures | 2006 | 4 Pages |
Abstract
A novel method to experimentally study the dynamics of long-living excitons in coupled quantum well semiconductor heterostructures is presented. Lithographically defined top gate electrodes imprint in-plane artificial potential landscapes for excitons via the quantum confined Stark effect. Excitons are shuttled laterally in a time-dependent potential landscape defined by an interdigitated gate structure. Long-range drift exceeding a distance of 150μm at an exciton drift velocity vd≳103m/s is observed in a gradient potential formed by a resistive gate stripe.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Andreas Gärtner, Dieter Schuh, Jörg P. Kotthaus,