Phys. Rev. Lett. 83, 3033–3036 (1999)Direct Observation of Hole Edge Channels in a Two Dimensional Electron GasReceived 4 December 1998; published in the issue dated 11 October 1999 We report the direct optical observation of confinement and transport of minority holes in a two dimensional electron gas. In spatially resolved magneto-optical experiments we observe hole confinement at the edge of a two dimensional electron gas and hole transport in edge channels. In a theoretical analysis we show that a repulsive edge potential for holes at the boundary of a two dimensional electron gas is caused by a polaron effect. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.3033
DOI:
10.1103/PhysRevLett.83.3033
PACS:
73.50.Pz, 72.20.Fr, 72.20.Ht, 73.40.Hm
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.