Autor: Wysokinski, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Remarks on the Hall Conductivity in Chiral Superconductors: Weak vs. Strong Coupling Approach
Autorzy:: Rogatko, M.
Wysokiński, K.
Powiązania:: https://bibliotekanauki.pl/articles/1374790.pdf
Data publikacji:: 2014-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.20.-z
74.25.F-
74.70.Pq
11.25.Tq
Opis:: We discuss the calculations of the ac Hall conductivity for superconductors with the time reversal symmetry breaking states. In the weak coupling theories these states show vanishing Hall response in one band models, even though one expects otherwise on symmetry grounds. On the other hand, the strong coupling approach based on the anti-de Sitter-conformal field theory correspondence leads to the non-vanishing Hall conductivity. We discuss the possible reasons of the discrepancy. The weak coupling many orbital theory leading to the Hall conductivity with correct temperature dependence is also briefly presented.
Źródło:: Acta Physica Polonica A; 2014, 126, 4a; A-9-A-12
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Off-Diagonal Nonmagnetic Disorder in s- and d-Wave Superconductors
Autorzy:: Michalik, M.
Wysokiński, K. I.
Powiązania:: https://bibliotekanauki.pl/articles/2046788.pdf
Data publikacji:: 2006-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.10.-w
71.23.-k
74.20.-z
Opis:: The previously developed approach to study off-diagonal disorder has been extended and applied to both s- and d-wave superconductors. The derived equations allow the self-consistent solution of the problem. For a special case of negative U centres embedded in non-superconducting host we have calculated their critical concentration for the appearance of superconductivity and found it equal to≈0.4. For x>x$\text{}_{cr}$ the order parameter continuously increases to its maximal value at x=1.
Źródło:: Acta Physica Polonica A; 2006, 109, 4-5; 623-626
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: CPA Theory of Superconducting Alloys with Diagonal and Off-Diagonal Disorder
Autorzy:: Michalik, M.
Wysokiński, K. I.
Powiązania:: https://bibliotekanauki.pl/articles/2038393.pdf
Data publikacji:: 2004-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.10.-w
71.23.-k
74.20.-z
Opis:: The general theory of disorder in superconducting alloys was discussed. We use standard Wannier function representation and allow for diagonal and off-diagonal disorder. We generalized the coherent potential approximation in the version able to deal with off-diagonal disorder in normal systems to treat superconducting state. As an illustration we calculate the quasiparticle density of states and gap function of a d-wave superconductor. We show inter alia that the rate at which superconductivity disappears depends on the kind of disorder and for off-diagonal disorder it depends on the details of its realization.
Źródło:: Acta Physica Polonica A; 2004, 106, 5; 653-658
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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