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Observation of an electronic order along [110] direction in FeSe.
Bu, Kunliang; Zhang, Wenhao; Fei, Ying; Zheng, Yuan; Ai, Fangzhou; Wu, Zongxiu; Wang, Qisi; Wo, Hongliang; Zhao, Jun; Yin, Yi.
Afiliación
  • Bu K; Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou, China.
  • Zhang W; Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou, China.
  • Fei Y; Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou, China.
  • Zheng Y; Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou, China.
  • Ai F; Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou, China.
  • Wu Z; Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou, China.
  • Wang Q; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, China.
  • Wo H; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, China.
  • Zhao J; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, China.
  • Yin Y; Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China.
Nat Commun ; 12(1): 1385, 2021 Mar 02.
Article en En | MEDLINE | ID: mdl-33654059
Multiple ordered states have been observed in unconventional superconductors. Here, we apply scanning tunneling microscopy to probe the intrinsic ordered states in FeSe, the structurally simplest iron-based superconductor. Besides the well-known nematic order along [100] direction, we observe a checkerboard charge order in the iron lattice, which we name a [110] electronic order in FeSe. The [110] electronic order is robust at 77 K, accompanied with the rather weak [100] nematic order. At 4.5 K, The [100] nematic order is enhanced, while the [110] electronic order forms domains with reduced correlation length. In addition, the collective [110] order is gaped around [-40, 40] meV at 4.5 K. The observation of this exotic electronic order may shed new light on the origin of the ordered states in FeSe.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido