Robust Spin Fluctuations and s plus or minus Pairing in the Heavily Electron Doped Iron-Based Superconductors
We theoretically study the spin fluctuation and superconductivity in La1111 and Sm1111 iron-based superconductors for a wide range of electron doping. When we take into account the band structure variation by electron doping, the hole Fermi surface originating from the d...-Y... orbital turns out to...
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| Veröffentlicht in: | Journal of the Physical Society of Japan 2013-08, Vol.82 (8), p.1-1 |
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| container_title | Journal of the Physical Society of Japan |
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| creator | Suzuki, Katsuhiro Usui, Hidetomo Kuroki, Kazuhiko Iimura, Soshi Sato, Yoshiyasu Matsuishi, Satoru Hosono, Hideo |
| description | We theoretically study the spin fluctuation and superconductivity in La1111 and Sm1111 iron-based superconductors for a wide range of electron doping. When we take into account the band structure variation by electron doping, the hole Fermi surface originating from the d...-Y... orbital turns out to be robust against electron doping, and this gives rise to large spin fluctuations and consequently s plus or minus pairing even in the heavily doped regime. The stable hole Fermi surface is larger for Sm1111 than for La1111, which can be considered as the origin of the apparent difference in the phase diagram. (ProQuest: ... denotes formulae/symbols omitted.) |
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When we take into account the band structure variation by electron doping, the hole Fermi surface originating from the d...-Y... orbital turns out to be robust against electron doping, and this gives rise to large spin fluctuations and consequently s plus or minus pairing even in the heavily doped regime. The stable hole Fermi surface is larger for Sm1111 than for La1111, which can be considered as the origin of the apparent difference in the phase diagram. 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When we take into account the band structure variation by electron doping, the hole Fermi surface originating from the d...-Y... orbital turns out to be robust against electron doping, and this gives rise to large spin fluctuations and consequently s plus or minus pairing even in the heavily doped regime. The stable hole Fermi surface is larger for Sm1111 than for La1111, which can be considered as the origin of the apparent difference in the phase diagram. (ProQuest: ... denotes formulae/symbols omitted.)</abstract></addata></record> |
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| identifier | ISSN: 0031-9015 |
| ispartof | Journal of the Physical Society of Japan, 2013-08, Vol.82 (8), p.1-1 |
| issn | 0031-9015 1347-4073 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Band structure of solids Doping Fermi surfaces Fluctuation Origins Phase diagrams Superconductivity Superconductors |
| title | Robust Spin Fluctuations and s plus or minus Pairing in the Heavily Electron Doped Iron-Based Superconductors |
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