Weig, E. M. and Blick, R. H. and Brandes, T. and Kirschbaum, J. and Wegscheider, Werner and Bichler, M. and Kotthaus, J. P. (2004) Single-electron-phonon interaction in a suspended quantum dot phonon cavity. PHYSICAL REVIEW LETTERS, 92 (4): 046804. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
An electron-phonon cavity consisting of a quantum dot embedded in a freestanding GaAs/AlGaAs membrane is characterized using Coulomb blockade measurements at low temperatures. We find a complete suppression of single electron tunneling around zero bias leading to the formation of an energy gap in the transport spectrum. The observed effect is induced by the excitation of a localized phonon mode confined in the cavity. This phonon blockade of transport is lifted at discrete magnetic fields where higher electronic states with nonzero angular momentum are brought into resonance with the phonon energy.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SPONTANEOUS EMISSION; OSCILLATIONS; COMPUTATION; INFORMATION; TRANSISTOR; JUNCTIONS; BLOCKADE; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 Jul 2021 11:48 |
| Last Modified: | 22 Jul 2021 11:48 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38069 |
Actions (login required)
 |
View Item |
