- Tytuł:
- The Primary Role of Ionic Polarizability in Exotic Superconductivity
- Autorzy:
- Weger, M.
- Powiązania:
- https://bibliotekanauki.pl/articles/1933315.pdf
- Data publikacji:
- 1995-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
74.70.Kn
74.72.-v
72.15.-h
71.45.Gm - Opis:
- The ionic polarizability of organic metals and of high-T$\text{}_{c}$ cuprates is very high while the density of conduction electrons is low. As a result, the ionic polarizability screens out the electronic polarizability for states very close to the Fermi surface. The cut-off is determined by the dispersion of the ionic polarizability. The electron-phonon matrix element is very large for the ionically screened states, and is the cut-off for the electronically screened states. Therefore, the McMillan coupling constant λ$\text{}_{ph}$ is very large at very low energies, and has a low energy cut-off. This model accounts for both normal and superconducting state anomalies in organic metals, as well as cuprates.
- Źródło:
-
Acta Physica Polonica A; 1995, 87, 4-5; 723-733
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł