Autor: Davies, H. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Motional Enhancement of Exciton Magnetic Moments
Autorzy:: Litvinov, A.
Kochereshko, V.
Cox, R. T.
Besombes, L.
Mariette, H.
Boukari, H.
Loginov, D.
Davies, J. J.
Smith, L. C.
Wolverson, D.
Powiązania:: https://bibliotekanauki.pl/articles/2047370.pdf
Data publikacji:: 2007-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.35.Cc
71.35.Ji
71.36.+c
78.20.Ls
Opis:: The phenomenon in which giant enhancement of exciton magnetic moments occurs due to translational motion was found for light hole excitons in ZnTe/ZnMgTe quantum well structures. Decreasing diamagnetic shifts as the number of the exciton quantized state increases were found for the first time.
Źródło:: Acta Physica Polonica A; 2007, 112, 2; 161-165
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Excitonic Polaritons in Transverse Magnetic Fields
Autorzy:: Loginov, D.
Kochereshko, V. P.
Litvinov, A.
Besombes, L.
Mariette, H.
Davies, J. J.
Smith, L. C.
Wolverson, D.
Powiązania:: https://bibliotekanauki.pl/articles/2047705.pdf
Data publikacji:: 2007-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.35.-y
71.35.Ji
78.20.Ls
78.67.De
Opis:: Reflectivity spectra taken from wide quantum wells based on CdTe/CdZnTe and GaAs/AlGaAs (in which the well width is much larger than the exciton Bohr radius) were studied in magnetic fields in the plane of the well (the Voigt geometry). The energy splitting between bright and dark excitons and the redistribution of the oscillator strength from bright to dark was observed and this allowed us to determine the exciton exchange constantΔ. We found that exciton translational mass depends on the value of magnetic field. Additionally, we found that diamagnetic shift also depends on exciton wave vector. Changes in the spectra in the range of the overlap of heavy and light hole exciton resonances were observed when the magnetic field was inverted. Theoretical modeling of the spectra allowed us to explain all the observed features in the reflectivity spectra and to determine some material parameters.
Źródło:: Acta Physica Polonica A; 2007, 112, 2; 381-386
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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