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Sökning: onr:"swepub:oai:DiVA.org:uu-458329" > Observation of a Ub...

Observation of a Ubiquitous (π, π)-Type Nematic Superconducting Order in the Whole Superconducting Dome of Ultra-Thin BaFe2–xNixAs2 Single Crystals

Dong, Yu (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Lv, Yangyang (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Xu, Zuyu (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
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Abdel-Hafiez, Mahmoud (författare)
Uppsala universitet,Energimaterialens fysik,Natl Univ Sci & Technol MISiS, Moscow 119049, Russia
Vasiliev, A. N. (författare)
Natl Univ Sci & Technol MISiS, Moscow 119049, Russia.;Moscow MV Lomonosov State Univ, Moscow 119991, Russia.
Zhu, Haipeng (författare)
Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China.;Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
Wang, Junfeng (författare)
Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China.;Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
Li, Liang (författare)
Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China.;Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China.
Tian, Wanghao (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Chen, Wei (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Bao, Song (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Wang, Jinghui (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Wu, Yueshen (författare)
ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China.;ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China.
Huang, Yulong (författare)
Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.;Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
Li, Shiliang (författare)
Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.;Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
Yuan, Jie (författare)
Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.;Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
Jin, Kui (författare)
Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.;Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
Zhang, Labao (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.
Wang, Huabing (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.
Yu, Shun-Li (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Wen, Jinsheng (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Li, Jian-Xin (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China.
Li, Jun (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China.;ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China.
Wu, Peiheng (författare)
Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China.;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Peoples R China.
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Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China;Nanjing Univ, Sch Phys, Nanjing 210093, Peoples R China.;Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.;Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China. Energimaterialens fysik (creator_code:org_t)
Institute of Physics Publishing (IOPP), 2021
2021
Engelska.
Ingår i: Chinese Physics Letters. - : Institute of Physics Publishing (IOPP). - 0256-307X .- 1741-3540. ; 38:9
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • In iron-based superconductors, the (0, pi) or (pi, 0) nematicity, which describes an electronic anisotropy with a four-fold symmetry breaking, is well established and believed to be important for understanding the superconducting mechanism. However, how exactly such a nematic order observed in the normal state can be related to the superconducting pairing is still elusive. Here, by performing angular-dependent in-plane magnetoresistivity using ultra-thin flakes in the steep superconducting transition region, we unveil a nematic superconducting order along the (pi, pi) direction in electron-doped BaFe2 - x Ni x As2 from under-doped to heavily overdoped regimes with x = 0.065-0.18. It shows superconducting gap maxima along the (pi, pi) direction rotated by 45 degrees from the nematicity along (0, pi) or (pi, 0) direction observed in the normal state. A similar (pi, pi)-type nematicity is also observed in the under-doped and optimally doped hole-type Ba1 - y K y Fe2As2, with y = 0.2-0.5. These results suggest that the (pi, pi) nematic superconducting order is a universal feature that needs to be taken into account in the superconducting pairing mechanism in iron-based superconductors.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

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