de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Exchange energies, Curie temperatures and magnons in Heusler compounds

MPG-Autoren
Es sind keine MPG-Autoren in der Publikation vorhanden
Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Thoene, J., Chadov, S., Fecher, G., Felser, C., & Kübler, J. (2009). Exchange energies, Curie temperatures and magnons in Heusler compounds. Journal of Physics D: Applied Physics, 42(8): 084013, pp. 1-6. doi:10.1088/0022-3727/42/8/084013.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0018-98D9-5
Zusammenfassung
Heisenberg exchange parameters for various Heusler compounds with L2(1) structure were calculated using the Korringa-Kohn-Rostoker method and by employing the magnetic-force theorem to calculate the total energy changes associated with a local rotation of magnetization directions. Random occupation was treated within the coherent potential approximation. Further, the Curie temperatures were calculated in the mean-field approximation and have been found to be in good agreement with the experiment. A procedure for evaluating the spin-stiffness constants for the case of multiple magnetic sublattices is given and the results were compared with measured values. Magnon dispersion curves were obtained by Fourier transforming the calculated exchange parameters.