Possibility of local pair existence in optimally doped SmFeAsO₁₋х in pseudogap regime

• Published in: Физика низких температур
• Date: 2011
• Main Authors: Solovjov, A.L., Svetlov, V.N., Stepanov, V.B., Sidorov, S.L., Tarenkov, V.Yu., D’yachenko, A.I., Agafonov, A.B.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2011
• Subjects: Сверхпроводимость, в том числе высокотемпературная
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/118617
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Possibility of local pair existence in optimally doped SmFeAsO₁₋х in pseudogap regime / A.L. Solovjov, V.N. Svetlov, V.B. Stepanov, S.L. Sidorov, V.Yu. Tarenkov, A.I. D’yachenko, A.B. Agafonov // Физика низких температур. — 2011. — Т. 37, № 7. — С. 703–707. — Бібліогр.: 37 назв. — англ.

We report the analysis of pseudogap Δ* derived from resistivity experiments in FeAs-based superconductor SmFeAsO₀.₈₅, having a critical temperature Tc=55 K. Rather specific dependence Δ*(T) with two representative temperatures followed by a minimum at about 120 K was observed. Below Ts ≈ 147 K, corr...