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作者:

Zhao, S. Z. (Zhao, S. Z..) | Song, Hai-Ying (Song, Hai-Ying.) | Hu, L. L. (Hu, L. L..) | Xie, T. (Xie, T..) | Liu, C. (Liu, C..) (学者:刘超) | Luo, H. Q. (Luo, H. Q..) | Jiang, Cong-Ying (Jiang, Cong-Ying.) | Zhang, Xiu (Zhang, Xiu.) | Nie, X. C. (Nie, X. C..) | Meng, Jian-Qiao (Meng, Jian-Qiao.) | Duan, Yu-Xia (Duan, Yu-Xia.) | Liu, Shi-Bing (Liu, Shi-Bing.) (学者:刘世炳) | Xie, Hong-Yi (Xie, Hong-Yi.) | Liu, H. Y. (Liu, H. Y..)

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EI Scopus SCIE

摘要:

We study the ultrafast dynamics of the multiband iron-based superconductor CaKFe4As4 via time-resolved optical reflectivity. We observe a long-lived 5-GHz oscillation of the reflection changes within the superconducting regime. We assign this low-frequency oscillation to a soft Leggett mode associated with the collective fluctuation of multiple phase differences between Cooper pair condensates. Our observation evidences the presence of the time-reversal-symmetry breaking state in superconducting CaKFe4As4.

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作者机构:

  • [ 1 ] [Zhao, S. Z.]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China
  • [ 2 ] [Song, Hai-Ying]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China
  • [ 3 ] [Jiang, Cong-Ying]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Xiu]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China
  • [ 5 ] [Nie, X. C.]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China
  • [ 6 ] [Liu, Shi-Bing]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China
  • [ 7 ] [Liu, H. Y.]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China
  • [ 8 ] [Hu, L. L.]Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
  • [ 9 ] [Xie, Hong-Yi]Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
  • [ 10 ] [Liu, H. Y.]Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China
  • [ 11 ] [Xie, T.]Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
  • [ 12 ] [Liu, C.]Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
  • [ 13 ] [Luo, H. Q.]Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
  • [ 14 ] [Xie, T.]Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China
  • [ 15 ] [Liu, C.]Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China
  • [ 16 ] [Luo, H. Q.]Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
  • [ 17 ] [Meng, Jian-Qiao]Cent South Univ, Sch Phys & Elect, Changsha 410083, Hunan, Peoples R China
  • [ 18 ] [Duan, Yu-Xia]Cent South Univ, Sch Phys & Elect, Changsha 410083, Hunan, Peoples R China

通讯作者信息:

  • 刘世炳

    [Liu, Shi-Bing]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China;;[Liu, H. Y.]Beijing Univ Technol, Beijing Engn Res Ctr Laser Technol, Inst Laser Engn, Strong Field & Ultrafast Photon Lab, Beijing 100124, Peoples R China;;[Xie, Hong-Yi]Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China;;[Liu, H. Y.]Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China;;[Xie, T.]Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China;;[Xie, T.]Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China

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来源 :

PHYSICAL REVIEW B

ISSN: 2469-9950

年份: 2020

期: 14

卷: 102

3 . 7 0 0

JCR@2022

ESI学科: PHYSICS;

ESI高被引阀值:100

被引次数:

WoS核心集被引频次: 11

SCOPUS被引频次: 9

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

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