- Tytuł:
- Ground-State Energy of Biquadratic Spin Systems (S=3/2) in the (1/z)$\text{}^{1}$-Approximation
- Autorzy:
-
Błaszczak, E.
Aksamit, J.
Franek, A. - Powiązania:
- https://bibliotekanauki.pl/articles/2035740.pdf
- Data publikacji:
- 2003-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.10.Jm
75.30.Ds
75.30.Et
75.50.Ee - Opis:
- Corrections to the molecular-field ground-state energies of the Heisenberg model with isotropic biquadratic interactions (spin S=3/2) are calculated in the (1/z)$\text{}^{1}$-approximation using the diagrammatic technique based on the Wick reduction theorem (z is the number of spins interacting with any given spin). The present results for the antiferri- and antiferromagnetic phases complete the previously obtained data for the antiquadrupolar, ferri- and ferromagnetic phases. From among the boundaries between different ground states only that between the antiferri- and antiferromagnetic phases is shifted with respect to its molecular-field value.
- Źródło:
-
Acta Physica Polonica A; 2003, 103, 4; 403-414
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł