- Tytuł:
- Mn Impurity in GaN Studied by Electron Paramagnetic Resonance
- Autorzy:
-
Wołoś, A.
Palczewska, M.
Wilamowski, Z.
Kamińska, M.
Twardowski, A.
Boćkowski, M.
Grzegory, I.
Porowski, S. - Powiązania:
- https://bibliotekanauki.pl/articles/2036027.pdf
- Data publikacji:
- 2003-06
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.55.-i
71.55.Eq
71.70.Gm - Opis:
- We present the results of electron paramagnetic resonance investigations of GaN bulk crystals doped with Mn. The EPR experiment shows the Mn$\text{}^{2+}$ resonance in all the investigated n-type crystals, while in highly resistive samples extra doped with Mg acceptor the Mn$\text{}^{2+}$ resonance decreases. This is a consequence of the location of Mn acceptor level in GaN band gap. The analysis of the spin relaxation times reveals the Korringa scattering as the dominating spin relaxation mechanism in n-type GaN:Mn crystals. The effective exchange constant determined from spin relaxation rate temperature dependence is of the order of 14 meV.
- Źródło:
-
Acta Physica Polonica A; 2003, 103, 6; 595-600
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł