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Письма в Журнал экспериментальной и теоретической физики, 2009, том 89, выпуск 3, страницы 176–180
(Mi jetpl358)
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Эта публикация цитируется в 17 научных статьях (всего в 17 статьях)
КОНДЕНСИРОВАННЫЕ СРЕДЫ
Multiple bands – a key to high-temperature superconductivity in iron arsenides?
È. Z. Kuchinskii, M. V. Sadovskii Institute for Electrophysics, Ural Division RAS
Аннотация:
In the framework of four-band model of superconductivity in iron arsenides proposed by Barzykin and Gor'kov we analyze the gap ratios on hole – like and electron – like Fermi – surface cylinders. It is shown that experimentally observed (ARPES) gap ratios can be obtained only within rather strict limits on the values of pairing coupling constants. The difference of $T_c$ values in 1111 and 122 systems is reasonably explained by the relative values of partial densities of states. The multiple bands electronic structure of these systems leads to a significant enhancement of effective pairing coupling constant determining $T_c$, so that high enough $T_c$ values can be achieved even for the case of rather small intraband and interband pairing interactions.
Образец цитирования:
È. Z. Kuchinskii, M. V. Sadovskii, “Multiple bands – a key to high-temperature superconductivity in iron arsenides?”, Письма в ЖЭТФ, 89:3 (2009), 176–180; JETP Letters, 89:3 (2009), 156–160
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl358 https://www.mathnet.ru/rus/jetpl/v89/i3/p176
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Страница аннотации: | 232 | PDF полного текста: | 60 | Список литературы: | 43 |
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