at Google ScholarTitle data
Roszak, Katarzyna ; Machnikowski, Paweł ; Axt, Vollrath Martin ; Kuhn, Tilmann:
Spin decoherence of a confined exciton due to one‐ and two‐phonon assisted transitions.
In: Caldas, Marília J. ; Studart, Nelson
(ed.):
Physics of semiconductors. -
Melville, NY
: American Inst. of Physics
,
2010
. - pp. 413-414
. - (AIP Conference Proceedings
; 1199
)
ISBN 978-0-7354-0736-7
DOI: https://doi.org/10.1063/1.3295479
Abstract in another language
Exciton spin decay in a self‐assembled InAs/GaAs quantum dot is studied. The spin relaxation results from an interplay of two factors: the Bir‐Pikus Hamiltonian and the short‐range exchange interaction, leading to one‐ and two‐phonon assisted transitions. We establish a hierarchy between the resulting transition rates; the one‐phonon assisted transition to dark states is the fastest process. We also show the dominating role of transverse phonons for all of the transitions.
Further data
| Item Type: | Article in a book |
|---|---|
| Refereed: | Yes |
| Keywords: | quantum dot; non-linear optics; ultrafast dynamics; phonons; excitons; Pikus Bir interaction; spin-orbit coupling; dark states; short range exchange interaction; spin relaxation; exciton spin; decoherence; spintronics |
| Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 530 Physics |
| Date Deposited: | 06 Nov 2017 13:32 |
| Last Modified: | 09 Mar 2022 08:02 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/40211 |