- Tytuł:
- Pseudospin Models of Superconductors with Very Short Coherence Length
- Autorzy:
- Robaszkiewicz, S.
- Powiązania:
- https://bibliotekanauki.pl/articles/1860991.pdf
- Data publikacji:
- 1994-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
74.20.-z
05.30.Jp
71.28.+d - Opis:
- We discuss a few models developed for description of superconductivity with very short coherence length and point out their formal equivalence to specific spin models, such as an anisotropic Heisenberg model (s = 1/2) with two- and four-spin exchange coupling and with fixed magnetization in the z-direction, an XY-Z model with single ion anisotropy and a Kondo-lattice model with anisotropic on-site exchange. New results concerning the phase diagram of the Hubbard model with strong attraction, the electromagnetic properties of systems with the first order superconducting transition and a possibility of local charge moment compensation in systems of coexisting bound pairs and itinerant electrons are presented.
- Źródło:
-
Acta Physica Polonica A; 1994, 85, 1; 117-131
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł