Autor: Wieck, A. D. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Shake-Up Processes in Photoluminescence of Two-Dimensional Holes in a High Magnetic Field
Autorzy:: Wójs, A.
Bryja, L.
Misiewicz, J.
Potemski, M.
Reuter, D.
Wieck, A.
Powiązania:: https://bibliotekanauki.pl/articles/2047047.pdf
Data publikacji:: 2006-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.35.Cc
71.35.Ji
73.21.Fg
Opis:: Recombination of excitons and positive trions is studied by two-beam photoluminescence of a two-dimensional hole gas in a high magnetic field. The singlet, dark-triplet and bright-triplet states of a free trion are resolved, and their binding energies are determined. Recombination of acceptor-bound trions is also detected, including a low-energy cyclotron replica, corresponding to a hole shake-up process. Identification of all these different transitions was possible by analysis of optical selection rules and the comparison of experimental spectra with realistic numerical calculations.
Źródło:: Acta Physica Polonica A; 2006, 110, 3; 429-435
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Evidence of Singlet-Triplet Crossing in Photoluminescence of Positively Charged Excitons in GaAs Quantum Wells
Autorzy:: Bryja, L.
Wójs, A.
Jadczak, J.
Misiewicz, J.
Płochocka, P.
Potemski, M.
Reuter, D.
Wieck, A.
Powiązania:: https://bibliotekanauki.pl/articles/1811918.pdf
Data publikacji:: 2008-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.20.Mf
71.35.Ji
71.35.Pq
78.20.Ls
Opis:: Positively charged excitons in a two-dimensional hole gas in symmetric and asymmetric GaAs/$Ga_{1-x}Al_{x}As$ quantum wells are studied in polarization-resolved photoluminescence experiments in high magnetic fields B (up to 23 T) and low temperatures (down to 300 mK). The experiments are accompanied by numerical calculations of a real structure. The whole family of trions (the singlet and a pair of triplets) are observed. The Coulomb energies crossing of singlet and triplet is found: hidden in symmetric and visible in asymmetric structures.
Źródło:: Acta Physica Polonica A; 2008, 114, 5; 1073-1077
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Exciton Exchange between Nearly-Free and Acceptor-Bound States of a Positive Trion Assisted by Cyclotron Excitation
Autorzy:: Jadczak, J.
Bryja, L.
Wójs, A.
Bartsch, G.
Yakovlev, D. R.
Bayer, M.
Plochocka, P.
Potemski, M.
Reuter, D.
Wieck, A.
Powiązania:: https://bibliotekanauki.pl/articles/2047925.pdf
Data publikacji:: 2011-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.20.Mf
71.35.Ji
71.35.Pq
78.20.Ls
Opis:: In magneto-photoluminescence spectra of a two-dimensional hole gas in a GaAs quantum well we observe coupling of two different radiative states. The pair of coupled states are an acceptor-bound trion AX$\text{}^{+}$ and an essentially free (only weakly localized by a shallow lateral potential) trion X$\text{}^{+}$, brought into resonance by an additional cyclotron excitation controlled by the magnetic field. The coupling mechanism is the exciton transfer, and the optical signature is a clear anticrossing of the emission lines of an X$\text{}^{+}$ and a cyclotron replica of the AX$\text{}^{+}$.
Źródło:: Acta Physica Polonica A; 2011, 119, 5; 600-601
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja