- Tytuł:
- Lattice Dynamical Calculations for Inverse Spinel Compounds
- Autorzy:
- Kushwaha, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/1398877.pdf
- Data publikacji:
- 2015-03
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 63.20.-e
- Opis:
- Lattice dynamical calculations have been performed for inverse spinel structure compounds $MIn_{2}S_{4}$ (M = Mn and Co) using the proposed six parameter bond-bending force constant model. In this model, the short-range force constant is calculated by using the Taylor expansion of the potential energy in the harmonic approximation. This model is applied to study the zone-centre (Γ=0) phonon frequencies of inverse spinels $MIn_{2}S_{4}$ (M = Mn and Co). The significant outcome of the present work is that the second neighbor interactions (octahedral bonding) are stronger than the first neighbor interactions (tetrahedral bonding). The zone-center phonon frequencies, calculated using these parameters, are found to be in very good agreement with the observed results.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 3; 741-743
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł