Autor: Misiewicz, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Skyrmions in a Hole Gas with Large Spin Gap and Strong Disorder
Autorzy:: Bryja, L.
Ryczko, K.
Wójs, A.
Misiewicz, J.
Potemski, M.
Powiązania:: https://bibliotekanauki.pl/articles/2046907.pdf
Data publikacji:: 2006-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.20.Mf
73.21.Fg
78.20.Ls
78.67.De
Opis:: In the photoluminescence excitation spectra of two-dimensional valence holes with large spin gap and strong disorder we find evidence for quantum Hall ferromagnetism and small skyrmions around the Landau level filling factorν=1. This interpretation is supported by numerical calculations.
Źródło:: Acta Physica Polonica A; 2006, 110, 2; 163-168
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

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: 3.

Tytuł:: Experimental and Theoretical Studies of Free and Acceptor-Bound Positive Magneto-Trions
Autorzy:: Bryja, L.
Wójs, A.
Płochocka-Polack, P.
Gładysiewicz, A.
Misiewicz, J.
Potemski, M.
Powiązania:: https://bibliotekanauki.pl/articles/2047714.pdf
Data publikacji:: 2007-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Cn
71.35.Ji
73.21.Fg
Opis:: By combination of polarization-resolved photoluminescence, transport, and realistic numerics we study energy and recombination spectra of free and acceptor-bound positive trions in a quasi-two-dimensional hole gas. The singlet-triplet crossing in the trion ground state is found at B≈12 T, and a slight reduction of all trion binding energies coincident with the formation of a Laughlin hole fluid is observed at B≈14.2 T.
Źródło:: Acta Physica Polonica A; 2007, 112, 2; 415-418
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

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: 5.

Tytuł:: Combined Exciton-Cyclotron Resonance in Photoluminescence of a Two-Dimensional Hole Gas
Autorzy:: Jadczak, J.
Bryja, L.
Płochocka, P.
Wójs, A.
Misiewicz, J.
Maude, D.
Potemski, M.
Powiązania:: https://bibliotekanauki.pl/articles/1791299.pdf
Data publikacji:: 2009-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 73.20.Mf
71.35.Ji
71.35.Pq
78.20.Ls
Opis:: A two-dimensional hole gas in an asymmetric GaAs/$Ga_{1-x}Al_{x}As$ quantum well is studied by polarization-resolved photoluminescence in high magnetic fields (up to B = 20 T) and at low temperatures (down to T = 50 mK). In addition to the previously reported dominant emission channels of various free and acceptor-bound trions, the high-energy hole cyclotron replicas of the bound states are now also observed, corresponding to the combined exciton-cyclotron resonance. Identification of different transitions in the rich, multi-peak spectra was possible by the analysis of optical selection rules and comparison of the experimental spectra with realistic numerical calculations.
Źródło:: Acta Physica Polonica A; 2009, 116, 5; 852-853
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Time Resolved Photoluminescence Study of the Wide (Cd,Mn)Te/(Cd,Mg)Te Quantum Well
Autorzy:: Kutrowska, J.
Bugajny, P.
Baranowski, M.
Bryja, L.
Syperek, M.
Wójs, A.
Misiewicz, J.
Wiater, M.
Karczewski, G.
Powiązania:: https://bibliotekanauki.pl/articles/1399154.pdf
Data publikacji:: 2013-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.55.Et
78.47.D-
78.67.De
Opis:: The static and dynamic properties of excitons and trions in a 80 nm wide $Cd_{1-x}Mn_xTe/Cd_{0.7}Mg_{0.3}$Te quantum well with extremely small Mn content (x=0.00027) have been studied by means of time-integrated and time-resolved photoluminescence experiment at low and elevated temperatures. The trion binding energy has been estimated to be 2.6 ± 0.8 meV. The exciton and trion lifetimes have been measured to be ≈ 150 ps, and ≈ 200 ps, respectively. The temperature dependence of both lifetimes together with the multicomponent character of the PL decay process suggest a spatial localization of excitons and trions in the investigated quantum well.
Źródło:: Acta Physica Polonica A; 2013, 124, 5; 895-897
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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