- Tytuł:
- s-Wave Order Parameter in the Presence of a Momentum-Dependent Impurity Scattering Potential
- Autorzy:
-
Rudzińska, D.
Pisarski, P.
Harań, G. - Powiązania:
- https://bibliotekanauki.pl/articles/1812291.pdf
- Data publikacji:
- 2008-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
74.62.Dh
74.78.-w
74.81.-g - Opis:
- Momentum dependence of the impurity potential leads to the anisotropy of a local density of states in isotropic s-wave superconductors. We complete this result by discussing the influence of a momentum-dependent impurity potential on the s-wave order parameter. The scattering process is considered in the T-matrix approximation, and the model impurity potential consists of two separate terms representing isotropic (on-site) and anisotropic (momentum-dependent) parts of the potential. We show that the effect of the isotropic part on the order parameter is local whereas the influence of the momentum-dependent term is nonlocal.
- Źródło:
-
Acta Physica Polonica A; 2008, 114, 1; 149-152
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł