IDEAS home Printed from https://ideas.repec.org/a/spr/eurphb/v90y2017i6d10.1140_epjb_e2017-80115-7.html
   My bibliography  Save this article

Mott-Hubbard transition in the mass-imbalanced Hubbard model

Author

Listed:
  • Marie-Therese Philipp

    (Institute of Solid State Physics, TU Wien)

  • Markus Wallerberger

    (Institute of Solid State Physics, TU Wien)

  • Patrik Gunacker

    (Institute of Solid State Physics, TU Wien)

  • Karsten Held

    (Institute of Solid State Physics, TU Wien)

Abstract

The mass-imbalanced Hubbard model represents a continuous evolution from the Hubbard to the Falicov-Kimball model. We employ dynamical mean field theory and study the paramagnetic metal-insulator transition, which has a very different nature for the two limiting models. Our results indicate that the metal-insulator transition rather resembles that of the Hubbard model as soon as a tiny hopping between the more localized fermions is switched on. At low temperatures we observe a first-order metal-insulator transition and a three peak structure. The width of the central peak is the same for the more and less mobile fermions when approaching the phase transition, which agrees with our expectation of a common Kondo temperature and phase transition for the two species.

Suggested Citation

  • Marie-Therese Philipp & Markus Wallerberger & Patrik Gunacker & Karsten Held, 2017. "Mott-Hubbard transition in the mass-imbalanced Hubbard model," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 90(6), pages 1-7, June.
    • Handle: RePEc:spr:eurphb:v:90:y:2017:i:6:d:10.1140_epjb_e2017-80115-7
    DOI: 10.1140/epjb/e2017-80115-7
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1140/epjb/e2017-80115-7
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1140/epjb/e2017-80115-7?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
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Keywords

    Solid State and Materials;

    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:spr:eurphb:v:90:y:2017:i:6:d:10.1140_epjb_e2017-80115-7. 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.springer.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.