- Tytuł:
- Phase Separation near Half-Filling Point in Superconducting Compounds
- Autorzy:
-
Kucab, K.
Górski, G.
Mizia, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1374052.pdf
- Data publikacji:
- 2014-10
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.10.Fd
74.20.-z
75.10.Lp - Opis:
- We present the model of superconducting ceramics using the single band extended Hubbard Hamiltonian. We investigate the simultaneous presence of antiferromagnetism and d-wave superconductivity in the coherent potential approximation applied to the on-site Coulomb repulsion U. We consider the hopping interaction, Δt, the inter-site charge-charge interaction, V (creating superconductivity), and the single site Hund type exchange interaction, $F_\text{in}$ (creating antiferromagnetism). The influence of these interactions on the separation of superconducting and antiferromagnetic phases near the half-filling point is investigated. Results are compared with the experimental data for YBaCuO and NdCeCuO compounds.
- Źródło:
-
Acta Physica Polonica A; 2014, 126, 4a; A-104-A-106
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki