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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Study of the gap dependences on the Tc for Fe-based superconductors by SNS-Andreev spectroscopyдоклад на конференции
- Авторы: Kuzmichev S.A., Kuzmicheva T.E., Mikheev M.G., Roslova M.V., Tchesnokov S.N., Usol'tsev A.S., Ponomarev Ya G.
- Международная Конференция : SuperStripes 2013
- Даты проведения конференции: 2013
- Тип доклада: Устный
- Докладчик: Kuzmichev S.A.
- Место проведения: Italy, Ischia, Italy
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Аннотация доклада:
A summary data on the superconducting gap parameters 2Δ_L, and 2Δ_S vs. the critical temperature Tc obtained by SNS-Andreev spectroscopy (our group) and by other groups for iron-based superconductors are presented and compared. The conclusion on gap symmetry type is made. By applying two-gap BCS-model (Moskalenko and Suhl equations) to Δ_L,S(T), the relative coupling constants are derived. It is shown by us that the intraband coupling constants are not less than interband ones. Together with the form of Andreev dI/dV-dips this fact points to the extended s-wave symmetry type without sign reversal (s++) rather than pure s- or d-wave symmetry type for gaps Δ_L and Δ_S.
- Добавил в систему: Кузьмичев Светослав Александрович