- Tytuł:
- Band Edge Energies Pinning in Magnetic Field in Semimagnetic $Cd_{0.7}Mn_{0.3}Te$
- Autorzy:
-
Barauskaitė, L.
Brazis, R.
Ivanov, V.
Godlewski, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1492778.pdf
- Data publikacji:
- 2011-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.55.Et
75.50.Pp
71.70.-d - Opis:
- Results of $Cd_{0.7}Mn_{0.3}Te$ magneto-photoluminescence investigations are analyzed. Photoluminescence was measured in a Voigt geometry at the temperature of 1.6 K. Two models describing radiative transition energy are compared with the experimental results of $Cd_{0.7}Mn_{0.3}Te$ luminescence. The energy of recombination transition, employing the complete form of band states splitting description (term due to the Landau splitting included), shows deviation from experiment at B > 2 T. Two possible reasons of discrepancies from the experiment - exchange interaction constants dependence on magnetic field or band edge energies pinning in magnetic field - are discussed. Band edge energies pinning in magnetic field is related to the hybridization of Mn 3 $d^{5}$ levels with the band states of the host. We determine the corrected values of exchange interaction constants $(N_0 α -N_0 β//3)$ at magnetic fields B < 5 T.
- Źródło:
-
Acta Physica Polonica A; 2011, 120, 6; 1056-1060
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł