Superconducting pairing amplitude and local density of states in presence of repulsive centers
Artykuł w czasopiśmie
Status: | |
Autorzy: | Litak Grzegorz, Krawiec Mariusz |
Rok wydania: | 2006 |
Wersja dokumentu: | Drukowana | Elektroniczna |
Język: | angielski |
Wolumen/Tom: | 378-380 |
Strony: | 434 - 436 |
Impact Factor: | 0,872 |
Web of Science® Times Cited: | 2 |
Scopus® Cytowania: | 2 |
Bazy: | Web of Science | Scopus |
Efekt badań statutowych | NIE |
Materiał konferencyjny: | NIE |
Publikacja OA: | NIE |
Abstrakty: | angielski |
We study the properties of superconductor in presence of a finite concentration of repulsive centers. The superconductor is described by the negative U Hubbard model while repulsive centers are treated as randomly distributed impurities with repulsive interaction. Analyzing the paring potential and local density of states at impurity sites we find a wide range of the system parameters where the -like state could possibly be realized. Comparison of our results to the single repulsive center case is also given. |