IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-24783-5.html
   My bibliography  Save this article

High-order replica bands in monolayer FeSe/SrTiO3 revealed by polarization-dependent photoemission spectroscopy

Author

Listed:
  • Chong Liu

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Ryan P. Day

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Fengmiao Li

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Ryan L. Roemer

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Sergey Zhdanovich

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Sergey Gorovikov

    (Canadian Light Source)

  • Tor M. Pedersen

    (Canadian Light Source)

  • Juan Jiang

    (Yale University)

  • Sangjae Lee

    (Yale University)

  • Michael Schneider

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Doug Wong

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Pinder Dosanjh

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Frederick J. Walker

    (Yale University)

  • Charles H. Ahn

    (Yale University
    Yale University)

  • Giorgio Levy

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Andrea Damascelli

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • George A. Sawatzky

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

  • Ke Zou

    (Quantum Matter Institute, University of British Columbia
    University of British Columbia)

Abstract

The mechanism of the enhanced superconductivity in monolayer FeSe/SrTiO3 has been enthusiastically studied and debated over the past decade. One specific observation has been taken to be of central importance: the replica bands in the photoemission spectrum. Although suggestive of electron-phonon interaction in the material, the essence of these spectroscopic features remains highly controversial. In this work, we conduct angle-resolved photoemission spectroscopy measurements on monolayer FeSe/SrTiO3 using linearly polarized photons. This configuration enables unambiguous characterization of the valence electronic structure with a suppression of the spectral background. We consistently observe high-order replica bands derived from various Fe 3d bands, similar to those observed on bare SrTiO3. The intensity of the replica bands is unexpectedly high and different between dxy and dyz bands. Our results provide new insights on the electronic structure of this high-temperature superconductor and the physical origin of the photoemission replica bands.

Suggested Citation

  • Chong Liu & Ryan P. Day & Fengmiao Li & Ryan L. Roemer & Sergey Zhdanovich & Sergey Gorovikov & Tor M. Pedersen & Juan Jiang & Sangjae Lee & Michael Schneider & Doug Wong & Pinder Dosanjh & Frederick , 2021. "High-order replica bands in monolayer FeSe/SrTiO3 revealed by polarization-dependent photoemission spectroscopy," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-24783-5
    DOI: 10.1038/s41467-021-24783-5
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-24783-5
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-24783-5?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ruochen Shi & Qize Li & Xiaofeng Xu & Bo Han & Ruixue Zhu & Fachen Liu & Ruishi Qi & Xiaowen Zhang & Jinlong Du & Ji Chen & Dapeng Yu & Xuetao Zhu & Jiandong Guo & Peng Gao, 2024. "Atomic-scale observation of localized phonons at FeSe/SrTiO3 interface," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    2. Xiaoyang Chen & Tianlun Yu & Yuan Liu & Yanqiu Sun & Minyinan Lei & Nan Guo & Yu Fan & Xingtian Sun & Meng Zhang & Fatima Alarab & Vladimir N. Strocov & Yilin Wang & Tao Zhou & Xinyi Liu & Fanjin Lu &, 2024. "Orientation-dependent electronic structure in interfacial superconductors LaAlO3/KTaO3," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-24783-5. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.