IDEAS home Printed from https://ideas.repec.org/a/spr/eurphb/v59y2007i3p305-309.html
   My bibliography  Save this article

Magnetic susceptibility and specific heat of the spin- ${\frac{1}{2}}$ Heisenberg model on the kagome lattice and experimental data on ZnCu 3 (OH) 6 Cl 2

Author

Listed:
  • G. Misguich
  • P. Sindzingre

Abstract

We compute the magnetic susceptibility and specific heat of the spin- $\frac{1}{2}$ Heisenberg model on the kagome lattice with high-temperature expansions and exact diagonalizations. We compare the results with the experimental data on ZnCu 3 (OH) 6 Cl 2 obtained by Helton et al. [Phys. Rev. Lett. 98, 107204 (2007)]. Down to k B T/J≃0.2, our calculations reproduce accurately the experimental susceptibility, with an exchange interaction J≃190 K and a contribution of 3.7% of weakly interacting impurity spins. The comparison between our calculations of the specific heat and the experiments indicate that the low-temperature entropy (below ~20 K) is smaller in ZnCu 3 (OH) 6 Cl 2 than in the kagome Heisenberg model, a likely signature of other interactions in the system. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Suggested Citation

  • G. Misguich & P. Sindzingre, 2007. "Magnetic susceptibility and specific heat of the spin- ${\frac{1}{2}}$ Heisenberg model on the kagome lattice and experimental data on ZnCu 3 (OH) 6 Cl 2," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 59(3), pages 305-309, October.
    • Handle: RePEc:spr:eurphb:v:59:y:2007:i:3:p:305-309
    DOI: 10.1140/epjb/e2007-00301-6
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1140/epjb/e2007-00301-6
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1140/epjb/e2007-00301-6?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.

    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:59:y:2007:i:3:p:305-309. 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.