- Tytuł:
- Polaron States in a CuO Chain
- Autorzy:
-
Bieniasz, K.
Oleś, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1385209.pdf
- Data publikacji:
- 2015-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
72.10.Di
75.10.Pq
75.50.Ee - Opis:
- We introduce a one-dimensional model for a CuO chain, with holes and S=1/2 spins localized in $3d_{x²-y²}$ orbitals, and p_σ oxygen orbitals without holes in the ground state. We consider a single hole doped at an oxygen site and study its propagation by spin-flip processes. We develop the Green function method and treat the hole-spin coupling in the self-consistent Born approximation, similar to that successfully used to study polarons in the regular t-J model. We present an analytical solution of the problem and investigate whether the numerical integration is a good approximation to this solution.
- Źródło:
-
Acta Physica Polonica A; 2015, 127, 2; 269-271
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł