OBSERVATION OF 2-DIMENSIONAL EXCITON-PHONON QUASI-BOUND STATES

Authors
PELEKANOS NT HAAS H MAGNEA N BELITSKY VI CANTARERO A
Citation
Nt. Pelekanos et al., OBSERVATION OF 2-DIMENSIONAL EXCITON-PHONON QUASI-BOUND STATES, Physical review. B, Condensed matter, 56(16), 1997, pp. 10056-10059
Citations number
17
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
16
Year of publication
1997
Pages
10056 - 10059
Database
ISI
SICI code
0163-1829(1997)56:16<10056:OO2EQS>2.0.ZU;2-9
Abstract
We demonstrate the existence of robust exciton-phonon quasibound state s (EPQBS) in a two-dimensional semiconductor system, resulting from th e binding of the e(1)h(1) and e(1)h(2) heavy-hole quantum-well exciton s with an LO phonon, We show that increasing quantum confinement drast ically weakens these two-dimensional EPQBS. A theoretical model includ ing phonon confinement accounts qualitatively for our results, [S0163- 1829(97)50140-8].