IDEAS home Printed from https://ideas.repec.org/a/spr/eurphb/v91y2018i10d10.1140_epjb_e2018-90146-1.html
   My bibliography  Save this article

Effect of exchange-correlation spin–torque on spin dynamics

Author

Listed:
  • John Kay Dewhurst

    (Max-Planck Institut für MikrostrukturPhysik)

  • Antonio Sanna

    (Max-Planck Institut für MikrostrukturPhysik)

  • Sangeeta Sharma

    (Max-Planck Institut für MikrostrukturPhysik)

Abstract

A recently proposed exchange-correlation functional within density functional theory, which ensures that the exchange-correlation magnetic field is source-free, is shown to give non-zero internal spin–torque. This spin–torque is identically zero for all conventional local and semi-local functionals. Extension of this source-free functional to the time domain is used to study the effect of the internal spin–torque on the laser induced spin-dynamics in bulk Co, Ni and interfaces of these metals with Pt. It is shown that the internal spin–torque contributes significantly to spin-dynamics only when the magneto crystalline anisotropy energy is small, as in the case of cubic bulk materials. For surfaces or interfaces, where the anisotropy energy is large, these torques are too small to cause any significant precession of spins in early times (

Suggested Citation

  • John Kay Dewhurst & Antonio Sanna & Sangeeta Sharma, 2018. "Effect of exchange-correlation spin–torque on spin dynamics," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 91(10), pages 1-6, October.
    • Handle: RePEc:spr:eurphb:v:91:y:2018:i:10:d:10.1140_epjb_e2018-90146-1
    DOI: 10.1140/epjb/e2018-90146-1
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1140/epjb/e2018-90146-1
    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/e2018-90146-1?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

    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:91:y:2018:i:10:d:10.1140_epjb_e2018-90146-1. 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.