- Tytuł:
- Ferromagnetism in Hubbard Chains
- Autorzy:
-
Cuoco, M.
Noce, C.
Romano, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1955828.pdf
- Data publikacji:
- 1997-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.10.Fd
75.10.Lp - Opis:
- We analyze the possible occurrence of ferromagnetism in the Hubbard model, by means of an exact diagonalization study performed on 3- to 8-site chains with periodic boundary conditions. In the case of one hole in the half-filled configuration, we find that the Nagaoka state is reached only in the 3- and in the 4-site case. Ground states characterized by unsaturated ferromagnetism are found when the case of more than one hole is considered.
- Źródło:
-
Acta Physica Polonica A; 1997, 91, 2; 387-390
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł