IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-21741-z.html
   My bibliography  Save this article

Rise and fall of Landau’s quasiparticles while approaching the Mott transition

Author

Listed:
  • Andrej Pustogow

    (Universität Stuttgart
    UCLA
    Vienna University of Technology)

  • Yohei Saito

    (Universität Stuttgart
    Hokkaido University)

  • Anja Löhle

    (Universität Stuttgart)

  • Miriam Sanz Alonso

    (Universität Stuttgart)

  • Atsushi Kawamoto

    (Hokkaido University)

  • Vladimir Dobrosavljević

    (Florida State University)

  • Martin Dressel

    (Universität Stuttgart)

  • Simone Fratini

    (Institut Néel - CNRS and Université Grenoble Alpes)

Abstract

Landau suggested that the low-temperature properties of metals can be understood in terms of long-lived quasiparticles with all complex interactions included in Fermi-liquid parameters, such as the effective mass m⋆. Despite its wide applicability, electronic transport in bad or strange metals and unconventional superconductors is controversially discussed towards a possible collapse of the quasiparticle concept. Here we explore the electrodynamic response of correlated metals at half filling for varying correlation strength upon approaching a Mott insulator. We reveal persistent Fermi-liquid behavior with pronounced quadratic dependences of the optical scattering rate on temperature and frequency, along with a puzzling elastic contribution to relaxation. The strong increase of the resistivity beyond the Ioffe–Regel–Mott limit is accompanied by a ‘displaced Drude peak’ in the optical conductivity. Our results, supported by a theoretical model for the optical response, demonstrate the emergence of a bad metal from resilient quasiparticles that are subject to dynamical localization and dissolve near the Mott transition.

Suggested Citation

  • Andrej Pustogow & Yohei Saito & Anja Löhle & Miriam Sanz Alonso & Atsushi Kawamoto & Vladimir Dobrosavljević & Martin Dressel & Simone Fratini, 2021. "Rise and fall of Landau’s quasiparticles while approaching the Mott transition," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21741-z
    DOI: 10.1038/s41467-021-21741-z
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-21741-z
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-21741-z?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. A. Pustogow & Y. Kawasugi & H. Sakurakoji & N. Tajima, 2023. "Chasing the spin gap through the phase diagram of a frustrated Mott insulator," Nature Communications, Nature, vol. 14(1), pages 1-6, 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_s41467-021-21741-z. 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.